Shoveltown Auto Service

Why Is My Tire Tread Worn Unevenly?

Thu, 23 Apr 2026 20:40:00 GMT

Tires are an investment that you likely expect to last for years of regular driving, which is why noticing uneven wear on your tread can be frustrating. Uneven tread wear leads to decreased longevity, causing more frequent replacements despite much of the tire still having adequate tread remaining.

Ensuring that your tires are experiencing even wear as you drive is important to protecting yourself from premature replacements, but what issues lead to this problem in the first place? In this article, we’ll cover the most common causes of uneven tread wear and how you can avoid it in the future!

Underinflated/Overinflated Tires

Maintaining the proper PSI in your tires is important to ensuring the tread is contacting the road evenly.

When tires are overinflated, the center of the tread will bulge out and receive the majority of the wear. Similarly, underinflating the tires will have the opposite effect and lead to rapid wear on the outside of the tread rather than the inside.

The best way to prevent incorrect tire pressure is to check your tire pressure monthly and adjust as needed. Newer vehicles may even show you the exact pressure of each tire on the dashboard, allowing you to catch improperly inflated tires before they can cause uneven wear.

Misaligned Wheels

Consistent wheel alignments are important for keeping all four wheels aligned perfectly straight. Alignments consist of using equipment to precisely align each of the many suspension components connected to the wheels, ensuring that each wheel is perfectly straight.

Over time, these suspension components will gradually fall out of alignment, allowing your wheels to become misaligned with the road. The irregular wear your tread will experience depends on the severity of your suspension’s misalignment, but will often cause bands of excessive wear on certain parts of your tire.

In general, it’s best to have your wheel aligned every 7,000-10,000 miles or about every year. If you suspect your vehicle has fallen out of alignment, you should have it inspected by a trusted professional to avoid further wear.

Unbalanced Wheels

Over time with regular driving, it’s possible that the wheel weights keeping your wheel and tire assembly balanced during rotation may detach and fall from the vehicle, causing an imbalance in your wheel and potentially leading to irregular wear as the tire wobbles and fails to maintain full-contact with the road surface.

If you’re experiencing issues with your wheel balancing, it’s important to have it inspected and corrected by a trusted professional as soon as possible to avoid further tread wear and suspension wear.

Worn or Failed Suspension Components

Like we mentioned above regarding wheel alignments, there are various interconnected suspension components that play a role in the alignment and control of the wheel. When one of these components experiences damage or failure from old-age, it can cause the wheel to contact the road unevenly, leading to irregular wear on your tread.

When noticing unusual sounds or sensations from your suspension, such as squeaking or rubbing, it’s important to have your suspension system inspected as soon as possible to avoid further and expensive damage.

Suspension & Alignment Services in Easton, MA

If you notice uneven tread wear on your tires, contact the friendly and knowledgeable team at Shoveltown Auto Service in Easton, MA for dependable suspension and alignment services! Our ASE-Certified technicians have extensive experience in narrowing down the source of irregular tire wear, and will return yours to driving as it should. Give us a call or schedule online today to secure your appointment at Shoveltown Auto Service!

What Causes a Coolant Leak?

Thu, 19 Mar 2026 16:41:00 GMT

One of the largest byproducts of the combustion process vehicles use to produce power is heat, which can build up in the sensitive metal internals of your motor. This thermal energy must be dealt with, otherwise the surplus of heat will begin to weaken, warp, or crack the most crucial parts of your engine.

Our vehicles accomplish this temperature control through the use of coolant, otherwise known as anti-freeze. Like with the other essential automotive fluids, coolant leaks can develop over time, depriving your cooling system of what it needs to operate. In this article, we’ll cover how the cooling system works, how these leaks can occur, and what effect a coolant leak may have on your vehicle.

How Does Coolant Work?

Coolant is continually looped through the engine block, drawing away excess heat from the metal components into the fluid. The hot coolant is then returned to the radiator at the front of the vehicle, where air runs over the thin metal fins and disperses this heat into the surrounding air. This process is constantly repeated to keep the engine’s temperature at a safe level when driving.

What Is a Coolant Leak?

Over time, the hoses and gaskets that keep the coolant within the closed cooling loop will degrade and wear down, potentially allowing for coolant to leak from the system and deprive the engine of crucial cooling capability.

This cooling system relies on a constant supply of coolant through the engine to draw an adequate amount of heat away from the sensitive components. Even slight overheating may cause irreparable damage to critical parts like valves and connecting rods in a matter of minutes.

Symptoms of Coolant Leak

If your vehicle is experiencing a coolant leak, you may encounter some of these common symptoms:

High reading on temperature gauge
Odor of burning coolant (generally sweet, like burning marshmallows)
White smoke from engine bay
Visible coolant leak below vehicle
Poor fuel economy

Causes of Coolant Leaks

Corroded or Damaged Radiator

The radiator acts as home base for the cooling system, as coolant enters at a high temperature and exits at a low temperature, ready to be looped through the cooling system once again. The radiator generally sits at the very front of the vehicle behind the grill, exposed to elements such as moisture, debris, and impact damage.

Whether through corrosion from moisture and road salt or damage from impacts or debris, the radiator may develop a leak that allows for crucial coolant to exit, leaving your vehicle without the necessary amount of coolant to keep itself at a safe temperature.

Unfortunately, damaged radiators will generally need to be replaced rather than repaired. Even the smallest failure in a radiator can lead to dangerous levels of overheating.

Leaky Radiator Cap

The cooling system is heavily pressurized and relies on seals such as the radiator cap to maintain that pressure. Over time, the rubber gasket sealing the cap and radiator may degrade or rip, allowing for pressure and coolant to escape from the top of the radiator.

Luckily, radiator caps are simple and inexpensive replacements. This is by far the least serious issue on the list and can be fixed in a matter of seconds with a new cap.

When swapping out the radiator cap, always ensure the vehicle has been sitting for long enough to cool down completely, as opening the cap when the system is pressurized can result in scalding coolant shooting into your face.

Failed Water Pump

The water pump is the heart of the cooling system, as it is responsible for pumping the coolant throughout the loop. When this pump encounters issues due to corrosion, old age, or otherwise, it disrupts the entire system and can cause rapid overheating.

Generally, when a water pump fails the coolant will leak through the “weep hole” at the bottom of the pump, and this is a telltale sign your pump requires replacement.

No matter the cause, a failed water pump will not be able to move coolant throughout the system and will inevitably cause irreparable damage from overheating if left untreated.

Blown Head Gasket

While the other leaks we’ve been discussing are external, it’s also possible for coolant loss to occur internally, particularly through the head gasket.

The head gasket seals the combustion chamber, preventing fluids from leaking within the cylinders and disrupting combustion. When this gasket fails due to age, high heat, or physical damage, it can allow for coolant to leak into the combustion chamber.

Not only does this cause a rapid loss of coolant as it burns off during combustion, but it can also disrupt the operation of your engine, cause misfires, and eventually lead to irreparable damage to crucial engine components.

Blown head gaskets are often accompanied by white puffs of smoke from the tailpipe, as coolant burns off in the combustion chambers and exits through the exhaust system. If you’re experiencing symptoms of a head gasket issue, you should stop the vehicle immediately and have it inspected by a trusted professional to avoid expensive damage to your engine.

Cooling System Maintenance & Repair in Easton, MA

If you’re experiencing coolant loss, or any issue with your vehicle’s cooling system, don’t hesitate to reach out to the team at Shoveltown Auto Service in Easton. Our technicians have extensive experience providing top-notch cooling system service and repair on a wide range of makes and models.

Don’t let coolant leaks linger and risk permanent damage to your engine, give us a call or schedule online to secure your appointment with Easton’s premier cooling system repair facility!

How Do I Know If My Car Battery Is Failing?

Fri, 20 Feb 2026 18:24:00 GMT

Car batteries are one of those components that generally don’t get much thought unless you’re having issues. So when it’s finally nearing the end of its lifespan, what are the signs you should look out for to avoid being stranded with a dead battery?

How Long Do Automotive Batteries Last?

The exact lifespan of a car battery is heavily dependent on factors such as weather, driving conditions, driving frequency, and make/model. However, you can generally expect a battery to last anywhere between 3-5 years.

Signs of a Dead Battery

The symptoms of a dead car battery can vary by vehicle, but there are a few common signs that yours has reached the end of the road.

Slow Starting

One of the most obvious indications of a dying battery is trouble starting your vehicle. As the battery provides the initial electricity for ignition, a dead or dying battery will have a hard time producing the necessary power.

Battery Warning Light

The easiest way to tell if your battery is nearing replacement is an illuminated battery warning light. This light doesn’t always mean complete battery failure, but it signals an issue that could lead to insufficient charge.

Strange Symptoms and Unrelated Lights

Modern cars use a wide variety of modules, computers, and electrical systems. When your battery is starting to get weak, you may see warning lights on the dash and other strange symptoms you normally would not expect from a battery problem.

Dim or Flickering Lights

If you notice that your vehicle’s headlights are flickering, this may mean your battery is not strong enough to power them consistently and could need replacement soon.

Engine Doesn’t Crank

If your engine isn’t cranking at all when trying to start your vehicle, there’s a good chance you’re experiencing battery failure. You might hear a rapid clicking when trying to turn your key, or it may not do anything at all.

No Dome Light or Door Chimes

If your interior lights or door chimes are not working, it could be due to a failing battery. This may also occur because of a blown fuse, so it’s important to confirm the source of the issue before having it replaced.

How Much Does a Car Battery Replacement Cost?

Even though batteries last multiple years, they’re also generally inexpensive to replace when it’s time. The exact cost of the battery depends on the make/model of the car and the type of battery, however, you can expect to pay between $50 to $200.

Battery & Electrical Services at Shoveltown Auto Service

Don’t let electrical issues linger and cause further damage to your vehicle, reach out to our team for dependable electrical system service and repair from our experienced technicians! If you feel your vehicle may need a new battery, or any other electrical system service, trust the experts at Shoveltown Auto Service in Easton, MA . Give us a call or schedule online today!

Why Does My Exhaust Sound So Loud?

Tue, 20 Jan 2026 21:11:00 GMT

Our vehicle’s exhaust system plays numerous important roles, from moving exhaust fumes away from the cabin to quieting engine noise to removing harmful pollutants from the engine’s emissions. While a relatively simple system, an issue in just one area of the exhaust can cause a host of potential symptoms and harm. If your exhaust has an increase in noise, it can cause severe problems for your vehicle.

Possible Causes of A Loud Exhaust

Exhaust Leak

One of the most common reasons for a loud exhaust is an exhaust leak. This occurs when a hole or crack located in the exhaust system allows exhaust gases to escape before they reach the muffler. The noise will appear as a noticeable hissing or popping sound.

Muffler Issues

The muffler is designed to reduce noise levels by dampening the sound waves produced by the engine. Over time, your vehicle’s muffler may rust or become damaged. Rust is normal to see on your muffler due to extreme heat cycles and environmental moisture. However, it may cause structural damage, which can create holes and prevent the muffler from efficiently silencing the exhaust noise, resulting in a louder-than-normal exhaust.

Catalytic Converter Problems

A catalytic converter converts harmful pollutants into less harmful emissions. A failing catalytic converter can also be the main cause of a louder exhaust. When it malfunctions or becomes clogged, it can cause increased exhaust noise along with other symptoms like reduced engine performance and increased emissions.

Engine Problems

A loud exhaust could indicate engine issues such as misfires or problems with the fuel or ignition system, causing insufficient combustion and louder exhaust noise.

Exhaust Pipe Damage

Damage to the exhaust pipes can create significant problems, whether it’s a dent, a crack, or a hole, which can directly impact the sound level of your exhaust system. Even the smallest of damages can lead to significant increases in noise as gases escape through the compromised areas.

Worn-Out Exhaust Hangers

Exhaust hangers’ primary purpose is to secure the exhaust system in place. Over time, these hangers can wear out or break, causing parts of the exhaust system to hang loose and lower than intended. The misalignment can create rattling noises and increased exhaust sound.

Don’t Ignore a Loud Exhaust

While a loud exhaust is annoying and easier to ignore than acknowledge, it’s crucial that you don’t ignore it, as it can lead to more significant problems, including reduced fuel efficiency, increased emissions, and potential damage to other vehicle components. If you notice a sudden increase in exhaust noise, we suggest servicing the problem as soon as possible.

Exhaust Service & Repair in Easton, MA

No matter the issue your exhaust is experiencing, trust the ASE-certified technicians at Shovel Town Auto Service in Easton for dependable exhaust diagnostics and repairs. While a relatively simple system, an issue in just one area of the exhaust can cause a host of potential symptoms and harm. For one, a leaking exhaust can allow both unmitigated engine noise and harmful emissions into the surrounding atmosphere. From a leaking muffler to a faulty O2 sensor, our team will ensure your exhaust system is in proper shape to keep you and your vehicle in good health. Schedule an appointment with our friendly team today!

When a Misfire Isn’t What It Seems: The Real Story Behind Cylinder 3 on This Vehicle

Tue, 16 Dec 2025 16:39:00 GMT

When a vehicle rolls into our shop with a rough idle and a flashing check engine light, the story is usually deeper than what the computer tells us. Recently, we had a perfect example of that, and a great reminder that even brand-new parts aren’t always the root of the problem.

The Initial Symptoms: A Rough Start and Two Telling Codes

The vehicle ran noticeably rough as soon as we fired it up. Our technician then connected the scan tool and immediately found the following diagnostic codes:

• P0203 – Injector Circuit Open (Cylinder 3)

• P0303 – Misfire Cylinder 3

• P0316 – Misfire on Startup

The cylinder 3 injectors on this engine are positioned under the intake manifold, so inspecting them isn’t as simple as lifting a cover. By using a mirror to see inside and manually reaching into the area, we verified:

• The injector plug was connected

• The injector felt properly seated

So if everything looked okay, why the injector circuit code then?

A Look Into the Vehicle’s History Raised More Questions

Per the vehicle’s service history on Carfax, the fuel injectors had been replaced on October 1st, 2025, just months before it rolled into our shop. But why?

That’s a red flag worth investigating, as injectors usually aren’t replaced unless there’s a misfire, contamination, or electrical issue. Before jumping into expensive repairs, we contacted the shop that previously worked on the vehicle to see if we could get some valuable information.

Turns out, only cylinder 5’s injector had been replaced at that visit.

Why was cylinder 5 replaced then, and now cylinder 3 is failing? It could possibly have been a coincidence, but with what we were about to find, the bigger picture of this vehicle’s issue started coming together.

Digging Deeper: Intake Removal & Electrical Diagnosis

Given the codes and location, our next step was to remove the intake manifold to properly inspect cylinder 3’s injector and wiring harness.

Our technician had a strong suspicion that the root cause was electrical, not mechanical. Before we proceeded with replacing anything though, we wanted proof.

The Turning Point: Bench Testing With an Injector Tester

One of our techs owns professional injector testing and cleaning equipment, even bringing it in from home so we could bench-test this injector and eliminate all doubt.

Following this, the test confirms that Injector #3 is no good. Despite appearing plugged in and seated correctly from our visual inspection, injector 3 failed during the flow and circuit test.

That gave us the factual evidence needed to make a solid recommendation to the customer.

The Final Recommendation: Fix the Problem And Prevent It From Coming Back

After confirming the failure, and reviewing the prior injector history, we contacted the shop that last repaired the vehicle. Their records confirmed that only one injector (cylinder 5) had been replaced previously.

With cylinder 3 now failed, and the rest of the injectors being the same age, brand, and batch, our recommendation to the customer was to replace the five remaining injectors.

Why?

• Injectors often fail in clusters based on age, contamination, or electrical conditions.

• Replacing only one at a time leads to repeat visits, repeated labor costs, and ongoing misfires.

• The intake manifold removal is a significant labor operation, meaning doing it once is more cost-effective than repeating it every time another injector fails.

• Confirmed failure of injector 3 suggests the others are not far behind.

And now, with clear test data, the customer can see exactly why.

The Takeaway: Diagnostics Save Money

This job is the perfect example of why proper in-depth testing beats guesswork. The codes pointed us in the right direction, but the real confirmation came only after the following steps:

• Verifying physical connections

• Reviewing the vehicle’s repair history

• Performing electrical diagnosis

• And finally, bench-testing the injector with specialized equipment

The customer gets a fix they can trust rather than just another part thrown at the problem.

Powertrain Diagnostics at Shoveltown Auto Service

If you’re experiencing a similar issue or any other problem related to your powertrain , don’t hesitate to reach out to the team at Shoveltown Auto Service in Easton, MA. Our technicians have extensive experience in providing top-notch diagnostics and repairs on a wide range of vehicles. Give us a call or schedule online today!

CVT Transmissions Explained: What Are They & What Are The Benefits?

Wed, 19 Nov 2025 21:59:00 GMT

What is a CVT Transmission?

Unlike the conventional automatic transmissions that shift between fixed gear ratios, a continuously variable transmission (CVT) instead uses a system of belts or chains and pulleys that can seamlessly adjust to an infinite number of effective gear ratios. Think of it as having one smooth, continuous gear rather than 5, 6, or even 10 distinct gears.

Traditional automatics shift from first gear to second, second to third, and so on. Each time, this causes a momentary interruption in power delivery. A CVT, however, can instantly find the optimal ratio for any driving situation without these noticeable shifts.

How Does a CVT Transmission Work?

At the heart of a CVT are two pulleys connected by a specially designed belt or chain, also known as the V-belt. One pulley connects to the engine, called the drive pulley, while the other transfers power to the wheels through the driveshaft. This second pulley is called the driven pulley. These pulleys can change the diameter by moving their conical halves closer together or further apart. This effectively creates infinite gear ratios that can be seamlessly altered.

When you’re accelerating from a stop, the engine side pulley becomes smaller while the driveshaft side pulley becomes larger, creating the equivalent of a low gear ratio for more torque. As you reach cruising speed, the pulleys adjust to create the equivalent of a higher gear ratio for better efficiency.

Benefits of a CVT Transmission

Increased Fuel Efficiency

One of the primary reasons vehicle manufacturers have moved to CVT transmissions is the improved fuel economy they provide. The ability for the CVT transmission to keep the engine running at the optimal engine RPM regardless of vehicle speed provides improved fuel economy over a traditional automatic transmission.

In addition, the CVT transmission has fewer components and does not have a torque converter. This simplicity and lighter weight allows for less rotating mass in the vehicle, reducing fuel consumption from mechanical and frictional losses.

Reduced Emissions

The same benefits that we see from improved fuel efficiency also translate to reduced vehicle emissions. The ability to keep an engine running at its ideal operating RPM range allows the vehicle to create less emissions out of the tail pipe.

Reduced Manufacuturing Cost

Due to the fewer parts and smaller size CVTs are less expensive to manufacture. This lower cost reduces the overall cost of a new vehicle. The engine and transmission are one of the larger costs in producing a vehicle and the ability to reduce this expense allows vehicle manufacturers to offer more affordable cars for the consumer.

Driving Comfort

Another noticeable benefit you will notice when driving a CVT equipped vehicle is the smooth driving experience. Without traditional gear shifts the acceleration feels smooth without any jolting shifts. Instead of the vehicle hunting for the right gear during quick acceleration or climbing hills, you will just feel the continuous smooth acceleration.

This unusual lack of a shifting sensation can be jarring for some drivers who are new to CVT vehicles, however, many drivers also prefer this seamless feeling.

Transmission Service & Repair in Easton, MA

At Shoveltown Auto Service, we are committed to helping you get the most out of your vehicle. Whether you’re considering a new car with a CVT or maintaining one that you have, our team of certified technicians has the expertise to keep you moving smoothly. Give us a call or schedule online today to secure your appointment with Easton’s premier transmission repair facility!

Electric Maintenance Guide

Wed, 05 Nov 2025 16:11:00 GMT

Electric vehicles (EVs) have become a nationwide favorite among vehicle owners in the past decade. They generate lower energy costs, deliver higher fuel economy, contain advanced battery technology, and offer environmental benefits. These features are huge selling points. EVs also require less maintenance than internal combustion engine (ICE) vehicles, which run on gasoline or diesel. EV owners do not need to worry about oil changes, tune-ups, or replacing timing belts, catalytic converters, exhaust systems, or spark plugs. This has made EVs increasingly popular in the past ten years.

Next, it is important to recognize that while there are contrasting differences between EV (electric vehicle) and ICE (internal combustion engine) vehicles, both require routine services such as windshield, headlights, and suspension maintenance. EVs are expected to save owners thousands of dollars compared to purchasing a gas-powered vehicle.

Tire Maintenance

EVs weigh up to eight hundred pounds more than a traditional ICE vehicle due to the heavy battery powering the EV. The added weight on four tires will likely require tire replacement more frequently than in ICE vehicles. It’s recommended to routinely check the tire pressure and check the tires for wear and tear to catch a problem before it burns a hole in your bank account.

Brake Maintenance

You’d think that the increased weight of an EV might put more pressure on the brakes, requiring more frequent maintenance. However, this isn’t the case; EVs use regenerative braking, which reduces the effort required by the brake pads to slow the vehicle. Regenerative braking captures and recycles energy, boosting battery range and efficiency in electric and hybrid vehicles, offering smoother driving and reduced brake wear, making it possible for EV brake pads and rotors to easily outlast those of a traditional ICE vehicle.

Battery Maintenance

Electric vehicles don’t have the mechanical components of an ICE engine and rely on the battery instead, making it the most important component in your vehicle. It’s crucial you know how to properly maintain and care for your battery in the long run.

It’s recommended you replace your electric vehicle’s battery when needed. As for charging maintenance, a good rule of thumb is to keep your vehicle at a mid-level charge. Preferably 20%-80%. It’s especially important to apply battery coolant, which extends battery life by protecting it from reaching damaging temperatures. The battery coolant is particularly important when using Fast Chargers with higher voltages and currents, which produce more heat.

Over-The-Air Updates

Over-the-Air Updates are a key feature of modern vehicles. Software-defined vehicles are becoming more common, using OTA Updates. The car company sends your vehicle software updates for improvement, allowing manufacturers to update their electric vehicles by fixing bugs or improving overall performance. OTA updates make life simple for both car owners and automakers, making cars better, safer, and more compliant in every way.

Electric Vehicle Maintenance at Shoveltown

When it comes time to service your electric vehicle, you’ll want special service from mechanics who understand the unique components of an electric vehicle and can perform the best service possible. Luckily, the team at Shoveltown in Easton is an expert on electric vehicles and is ready to provide dependable service on your electric vehicle. Give us a call or schedule online today to secure your EV service or repair!

Symptoms of Worn Shock Absorbers

Mon, 29 Sep 2025 15:35:00 GMT

The shocks and struts are some of the critical components in the suspension, absorbing energy from road impact. As these parts take the brunt of the abuse for everyday driving, it’s not uncommon for them to wear down over time and require replacement. Worn-out shocks and struts can cause symptoms such as a squeaking noise when going over bumps and decreased handling performance, which can quickly become a major safety issue if left unaddressed.

Nose Dive When Braking

If your vehicle feels like the front end consistently dips toward the ground when you hit the brakes, this is called a nose-dive and can indicate potential worn shocks and struts. It can cause an increase in stopping distance, making driving conditions potentially dangerous.

Bouncy Ride

Bouncing excessively when driving and hitting a bump can be a signal that your vehicle’s shocks and struts aren’t working properly. When your shocks and struts aren’t functioning, your vehicle is supposed to settle when hitting a bump; instead, the shocks and struts can absorb the full road impacts and soften the bump.

Vehicle Rolls or Sways When Cornering

If you notice your vehicle swaying or rolling when making a turn, it can be unsettling because it can feel like you aren’t in control of your car. As shocks wear, they can lose their ability to control the rate of weight transfer when going around corners.

Uneven Tire Wear

When your vehicle’s shocks and struts are worn out, the car may start bouncing, causing a reduction in overall stability. This bouncing can also cause accelerated tire wear. It’s crucial to get your vehicle serviced by a professional as soon as you can to prevent potential damage.

Rear Squat During Acceleration –

Shocks and struts stabilize suspension movement when accelerating. When your shocks and struts are going bad, the rear of your vehicle can squat excessively when you hit the gas pedal. The vehicle’s momentum is transferred to the rear, which causes the front end to rise.

Vibration In the Steering Wheel

Commonly, if you’re driving over a bumpy road, it’s normal to experience a little vibration, but in some cases, vibrations can be a sign of bad shocks or struts. If you experience similar vibrations when driving on smooth roads, your shocks, struts, or steering stabilizer may be damaged or worn.

Leaking Fluid On Exterior of Shocks/Struts

Excessive hydraulic fluid leaking from your shocks or struts may be a sign that they’re wearing out. If the seals fail, then the fluid that is essential to the proper function of your shocks and struts is escaping.

Suspension Services

If you’re experiencing issues with your suspension system , it’s important to have it inspected and serviced by a trusted automotive professional as soon as possible to avoid further issues, which could become dangerous if left to linger. Give the suspension experts at Shovel Town Auto Service in Easton, Massachusetts, a call or schedule online with us today to secure your appointment! We service the areas surrounding Easton, Mansfield, and Norton!

Timing Belt vs. Timing Chain: What’s The Difference?

Fri, 29 Aug 2025 00:09:00 GMT

The timing system of your powertrain is responsible for ensuring that each step of the combustion cycle occurs at precise intervals to keep the engine operating smoothly and efficiently. If the various components of your engine were an orchestra, the timing system would be the conductor.

Timing systems rely on either a chain or a belt to link the camshaft and crankshaft, constantly turning as the engine runs and initiating each step of combustion during every rotation. Timing belts and chains both serve the same purpose, however the differences in material and setup lead to some differences that may affect your maintenance needs. Here’s what you should know!

What Are Timing Belts & Chains

Both timing belts and chains work in a similar way, connecting the camshaft that controls the valve operations to the camshaft, which is the engine’s output shaft that drives the timing system.

When either of these components experiences wear or failure, it can throw off the engine’s entire combustion cycle, leading to mistimed valve actuation and potentially irreparable engine damage. Both belts and chains rely on consistent tension from a tensioner, which ensures the belt/chain is pulled taut and maintains precise timing.

What Are The Differences?

Though both belts and chains work in essentially the same way, there are a few differences between the two components that you should be aware of.

Timing belts consist of a soft rubber or polyurethane, similar to the accessory belt that runs your vehicle’s other systems. Belts provide a few benefits, including cheaper production costs, simpler replacement, and a generally quieter powertrain noise.

Timing chains on the other hand are made of metal links, providing them with superior strength. Chains are generally more durable than their belt counterparts and tend to last longer before needing replacement. However their metal construction also leads to a noisier powertrain as the chain runs along its track.

You can often tell whether you have a belt or a chain by looking at the housing it’s located in. Plastic timing covers generally mean the engine uses a timing belt, while a metal timing cover is a good sign you’re looking at a chain, as chains need to be lubricated by engine oil and require a metal housing to do so.

How Often Do I Need to Replace My Timing Belt or Chain?

The answer to when your timing system requires service can depend on which of these two components your vehicle uses.

While it varies on the make and model of the vehicle as well as factors such as driving habits and oil quality, timing belts generally need replacements between every 60,000-100,000 miles. You should always keep an eye on the condition of your timing belt, and if you notice visible stretching, slipping, or hear a squeal from the belt, you should have your timing system inspected by a trusted automotive professional as soon as possible.

Timing chains, on the other hand, tend to be a bit more durable than belts. Although replacement tends to be a bit costlier, timing chains generally last over 80,000-120,000 miles before requiring a replacement.

Timing System Services at Shoveltown Auto Service

If you’re experiencing issues with your vehicle’s timing system, no matter if it runs off a belt or a chain, the technicians at Shoveltown Auto Service in Easton, MA have the expertise and equipment to properly perform timing maintenance and repair on all makes and models.

Give us a call or schedule online with our friendly and knowledgeable team today!

Types of A/C Refrigerant Explained

Wed, 02 Jul 2025 16:49:00 GMT

Since the 1950s, air conditioning systems have gone from expensive luxury add-ons to a standard inclusion on nearly every modern vehicle. It’s tough to imagine driving a vehicle throughout the summer without the ability to regulate the interior’s temperature.

While automotive A/C systems have generally operated in the same way since their introduction, the refrigerant fluid used in these systems has gone through a few major evolutions. In this article, we’ll go over what A/C refrigerant is, how it works, and the three varieties of refrigerant that have been seen industry-wide.

What Is A/C Refrigerant

A/C refrigerant is a specialized chemical substance used in air conditioning systems to produce the cool breeze we often take for granted. During the refrigeration cycle, refrigerant goes through various state-changes between liquid and gas as it absorbs heat from internal air and disperses it to the surroundings.

Types of Refrigerant

R12

R12, also known by its brand name of Freon, was the original type of refrigerant used widely in the automotive industry. While Freon is still a common way to refer to any A/C refrigerant, the term specifically refers to this formulation.

R12 became the worldwide standard for automotive air conditioning systems, and saw mass adoption by nearly every manufacturer.

In the 1980s, studies began to link the main ingredient of R12 Freon, chlorofluorocarbons (CFCs), to damage in the ozone layer of the atmosphere. The chemicals in CFCs react with the ozone molecules in the stratosphere, causing this important protective layer to be gradually stripped away.

The international community took action in 1987 with the Montreal Protocol, which was a worldwide agreement to begin phasing out CFC-containing products such as certain aerosol propellents, electronic cleaners, and air conditioning refrigerant.

By 1994, the Montreal Protocol had forced automakers to make the switch to the newer R134a refrigerant. While the vast majority of vehicles on the road no longer use R12, these old systems may still be found in models built prior to the switch.

It’s a good idea for vehicles that still run R12 refrigerant to have their systems retrofitted to accept R134a, as leaks in R12 systems may allow harmful CFCs to emit into the atmosphere.

R134a

R134a emerged as a potential replacement for the old R12 standard in the 1990s, touting increased environmental safety as the CFC formulation had been replaced by a similar-performing hydrofluorocarbon (HFC).

While HFCs do not react and degrade the ozone layer like it’s R12 predecessor, it was discovered that R134a still posed danger to the health of the atmosphere. According to the Environmental Protection Agency, R134a refrigerant is a “potent greenhouse gas with a global warming potential that is 1,430 times that of CO2.”

Automakers have since begun to make the change to a new formulation of refrigerant. The European Union required automakers to have made the switch to R1234yf refrigerant as of 2017, while the United States required compliance by 2022.

R1234yf

R1234yf is the most recent development in automotive refrigerants, and uses a hydrofluoric-olefin formulation rather than CFCs or HFCs. While most manufacturers have made this switch within the last five years, R1234yf systems can be found in some vehicles as early as the 2014 model year.

This new refrigerant isn’t without its problems, however so far it seems to solve the major environmental concerns of its predecessors. For instance, R134a has a Global Warming Potential (GWP) rating of 1430, while R1234yf has a GWP of just 3.

The only downside of this refrigerant currently is its price, as evacuation and recharge services tend to cost significantly more than that of a previous refrigerant. Luckily, unlike oil or coolant, A/C refrigerant is in a closed-system and only needs to be replaced if a leak allows refrigerant to exit.

A/C Services in Easton, MA

If you’re experiencing issues with your vehicle’s A/C system, or are in need of a recharge, don’t hesitate to reach out to the air conditioning experts at Shoveltown Auto Service in Easton, Massachusetts! Our team has extensive experience in providing A/C maintenance and repair, no matter the type of refrigerant your vehicle takes. Give us a call or schedule online with us today!

The post Types of A/C Refrigerant Explained appeared first on Shoveltown Auto Service.

What is Differential Fluid & When Should I Replace It?

Fri, 30 May 2025 18:02:00 GMT

While it may not get as much attention as oil changes or brake service, differential fluid plays a vital role in how your vehicle handles, especially when turning, towing, or driving in challenging conditions.

Understanding what differential fluid does and when to replace it can help you avoid unnecessary wear and keep your vehicle running smoothly.

What Does the Differential Do?

To understand the importance of differential fluid, it helps to first understand what the differential itself does. The differential is part of your drivetrain. It takes power from the engine and distributes it to the wheels while allowing them to rotate at different speeds, especially when turning. For example, the outside wheel travels a longer path than the inside wheel in a turn, and the differential allows this difference without causing tire slip or drivetrain strain.

You can compare this to an Olympic running track, as the outside lanes will need to travel a further distance around corners than those running on the inside lane. This difference in distance needs to be accounted for by the differential.

Depending on your vehicle, you may have a front differential, rear differential, or both (in the case of all-wheel-drive and four-wheel-drive systems). Each of these differentials needs proper lubrication to function correctly.

What Is Differential Fluid?

Differential fluid, sometimes called gear oil, is a thick lubricant designed to protect the gears, bearings, and other internal parts inside the differential. It reduces friction, prevents wear, and helps carry heat away from the working components.

This fluid is formulated to handle high pressures and extreme temperatures, especially in vehicles that tow, haul heavy loads, or drive off-road. It’s not the same as motor oil, as differential fluid is much thicker and specifically engineered for the heavy-duty demands of gear systems.

Why Is It Important?

Like any other lubricant, differential fluid breaks down over time. It can become contaminated with metal shavings, moisture, and debris, especially in high-stress driving conditions. As the fluid degrades, it loses its ability to protect the internal components of the differential.

If the fluid isn’t replaced when needed, you run the risk of increased friction, overheating, and even gear failure. The result can be loud whining or grinding noises, poor handling, or in severe cases, complete loss of power to the wheels.

Replacing the fluid at the right interval helps extend the life of the differential, maintains smooth operation, and prevents costly repairs.

When Should Differential Fluid Be Replaced?

There’s no universal mileage for differential fluid replacement because it depends on your vehicle’s make, model, drivetrain type, and how you drive. For most vehicles, the recommended interval is between 30,000 and 60,000 miles. However, if you do a lot of towing, off-roading, or drive in extreme conditions, you may need to change it more frequently.

Always refer to your owner’s manual or consult with a trusted technician to know the right schedule for your specific vehicle. Ignoring this service can lead to premature wear, especially in four-wheel-drive and all-wheel-drive systems where differentials work harder.

Signs Your Differential Fluid Needs Replacing

While some drivers follow the mileage schedule, others may not notice the need for service until symptoms show up. Here are a few signs that your differential fluid may be overdue:

Whining or howling noises while turning or accelerating
Vibration or resistance when turning corners
Burning smell from under the vehicle (overheating fluid)
Visible leaks around the differential housing
Clunking or grinding from the rear or front axle

If you experience any of these symptoms, it’s a good idea to have your vehicle inspected right away. Catching differential problems early can prevent further damage and avoid costly repairs.

Differential Services in Easton, MA

Replacing differential fluid might not seem urgent, especially if your vehicle is running fine. But neglecting it can lead to internal gear damage, bearing failure, or full differential replacement, all of which can cost hundreds or even thousands of dollars.

If you’re in need of differential service, don’t hesitate to reach out to the friendly team at Shoveltown Auto Service in Easton! Our technicians have extensive experience in providing services on the differentials of various makes and models. Give us a call or schedule online today!

The post What is Differential Fluid & When Should I Replace It? appeared first on Shoveltown Auto Service.

Brake Fluid Maintenance: A Small Detail That Makes a Big Difference

Tue, 13 May 2025 20:37:00 GMT

When was the last time you thought about your brake fluid? While most drivers know to check their brakes when they squeak or when they can feel a shake when they press their brake pedal. However, most people don’t even think about the importance of brake fluid and its role in a properly functioning brake system

What Does Brake Fluid Actually Do?

Brake fluid plays a key role in making sure your car stops when you hit the pedal. It transfers the force from your foot to the brake components at each wheel. If your fluid is low, contaminated with debris, or has too high of water content your braking performance can drop significantly.

Brake fluid acts as a hydraulic fluid, lubricant and corrosion protectant within your brake system. When you depress your brake pedal it increases the pressure within your brake system due to the brake fluids inherent resistance to compressibility. This transfers the pressure to activate your brake calipers and/or wheel cylinders.

The lubrication and corrosion protection that brake fluid offers should not be ignored. Brake fluid lubricate your brake system to components such as calipers and wheel cylinders to ensure that the metal components within them do not grind together. In addition, brake fluid is hygroscopic. Meaning that it absorbs moisture within the brake system. This protects components such as brake lines and master cylinders from deteriorating from rust.

Why Brake Fluid Breaks Down Over Time

Brake fluid wears out over time due to the absorption of moisture, the chemical breakdown of the anti-corrosion inhibitors due to use and heat, and the buildup of debris within the system.

Old or contaminated brake fluid is more than just a maintenance issue—it’s a safety hazard. Moisture inside the fluid can cause rust and corrosion in the brake lines, decrease the fluid’s boiling point, and lead to dangerous air bubbles in the system. If you have ever felt your brake pedal getting progressively softer as you descend a long hill that is your brake fluid boiling and creating air bubbles within the system. This all adds up to reduced braking power and longer stopping distances. In worst-case scenarios, it can even lead to brake failure.

How to Check Your Brake Fluid

Most cars have a clear reservoir under the hood so you can see the fluid level without

opening the cap. If you’re unsure or want to be safe, it’s best to have a trained technician take a look. Brake fluid is sensitive to moisture in the air, so even checking it can reduce its effectiveness if not done correctly.

When to Replace Brake Fluid

A good rule of thumb is to replace brake fluid every two years. However, your specific vehicle and driving habits may shorten that timeline. Have your brake fluid checked during routine oil changes or scheduled service. If the fluid looks dark, milky or smells burnt don’t wait to have it inspected.

Brake fluid should be changed at time intervals not just mileage. Due to the absorption of moisture even a lower mileage car can experience reduced braking performance from the lower boiling point of the fluid.

Count on the Brake Experts at Shoveltown Auto Service

At Shoveltown Auto Service, we help drivers in Easton, Mansfield, and Norton stay safe with expert brake service and fluid maintenance . Our experienced team knows exactly what your vehicle needs and uses only the right brake fluid for your make and model. We’re here to ensure your brakes are always performing at their best.

Don’t take chances with your brake fluid. Whether you’re due for a fluid replacement or just want peace of mind, Shoveltown Auto Service is here to help. Contact us today to schedule a brake inspection or ask our Service Advisors any questions.

The post Brake Fluid Maintenance: A Small Detail That Makes a Big Difference appeared first on Shoveltown Auto Service .

Why is My Tire Tread Worn Unevenly?

Thu, 01 May 2025 19:12:00 GMT

Underinflated/Overinflated Tires

Maintaining the proper PSI in your tires is important to ensuring the tread is contacting the road evenly.

Misaligned Wheels

Unbalanced Wheels

Worn or Failed Suspension Components

Suspension & Alignment Services in Easton, MA

If you notice uneven tread wear on your tires, contact the friendly and knowledgeable team at Shoveltown Auto Service in Easton, MA for dependable suspension and alignment services! We serve the entire surrounding area, including Mansfield and Norton! Our ASE-Certified technicians have extensive experience in narrowing down the source of irregular tire wear, and will return yours to driving as it should. Give us a call or schedule online today to secure your appointment at Shoveltown Auto Service!

Shoveltown Auto Service

Why Is My Tire Tread Worn Unevenly?

Underinflated/Overinflated Tires

Misaligned Wheels

Unbalanced Wheels

Worn or Failed Suspension Components

Suspension & Alignment Services in Easton, MA

What Causes a Coolant Leak?

How Does Coolant Work?

What Is a Coolant Leak?

Symptoms of Coolant Leak

Causes of Coolant Leaks

Corroded or Damaged Radiator

Leaky Radiator Cap

Failed Water Pump

Blown Head Gasket

Cooling System Maintenance & Repair in Easton, MA

How Do I Know If My Car Battery Is Failing?

How Long Do Automotive Batteries Last?

Signs of a Dead Battery

Slow Starting

Battery Warning Light

Strange Symptoms and Unrelated Lights

Dim or Flickering Lights

Engine Doesn’t Crank

No Dome Light or Door Chimes

How Much Does a Car Battery Replacement Cost?

Battery & Electrical Services at Shoveltown Auto Service

Why Does My Exhaust Sound So Loud?

Possible Causes of A Loud Exhaust

Exhaust Leak

Muffler Issues

Catalytic Converter Problems

Engine Problems

Exhaust Pipe Damage

Worn-Out Exhaust Hangers

​Don’t Ignore a Loud Exhaust

Exhaust Service & Repair in Easton, MA

When a Misfire Isn’t What It Seems: The Real Story Behind Cylinder 3 on This Vehicle

The Initial Symptoms: A Rough Start and Two Telling Codes

A Look Into the Vehicle’s History Raised More Questions

Digging Deeper: Intake Removal & Electrical Diagnosis

The Turning Point: Bench Testing With an Injector Tester

The Final Recommendation: Fix the Problem And Prevent It From Coming Back

The Takeaway: Diagnostics Save Money

Powertrain Diagnostics at Shoveltown Auto Service

CVT Transmissions Explained: What Are They & What Are The Benefits?

What is a CVT Transmission?

How Does a CVT Transmission Work?

Benefits of a CVT Transmission

Increased Fuel Efficiency

Reduced Emissions

Reduced Manufacuturing Cost

Driving Comfort

Transmission Service & Repair in Easton, MA

Electric Maintenance Guide

Tire Maintenance

Brake Maintenance

Battery Maintenance

Over-The-Air Updates

Electric Vehicle Maintenance at Shoveltown

Symptoms of Worn Shock Absorbers

Nose Dive When Braking

Bouncy Ride

Vehicle Rolls or Sways When Cornering

Uneven Tire Wear

Rear Squat During Acceleration –

Vibration In the Steering Wheel

Leaking Fluid On Exterior of Shocks/Struts

Suspension Services

Timing Belt vs. Timing Chain: What’s The Difference?

What Are Timing Belts & Chains

What Are The Differences?

How Often Do I Need to Replace My Timing Belt or Chain?

Timing System Services at Shoveltown Auto Service

Types of A/C Refrigerant Explained

What Is A/C Refrigerant

Types of Refrigerant

R12

R134a

Don’t Ignore a Loud Exhaust