What does the check engine light mean?    

The check engine light is designed as an indicator for a larger issue. When the light goes on, it means the computer in your vehicle has determined a system or component in your emission control system isn''t working as it should. When the light comes on, one or more codes are stored in the engine control model so technicians can determine the exact problem.

Look for a serious problem: Check for anything that may require your immediate attention. Look at your dashboard gauges to make sure your engine isn''t overheating, or that you have low oil pressure. If you do notice either of these problems, pull over and shut off the car right away.

Tighten your gas cap: Check to see if your gas cap is tight. Many times, this is a quick and easy fix to the solution.

Reduce your speed: If the light is on and there are noticeable performance problems, slow down immediately. If you''re pulling anything (i.e. a trailer), lighten your load as much as possible and stop towing until you can get your vehicle to a repair shop.

If your car has started pulling to one side or you feel your steering isn''t the want to play around with your steering. Your and your passengers'' safety is at stake. You want to be able to confidently make turns and steer clear of danger on the road. If your steering''s off, you may be putting yourself in danger.

Some signs that your steering and suspension may need to be looked at include: 

  • A vibrating steering wheel when you''re driving at high speed
  • Loose steering that may wander off to either side
  • Feeling every bump in the road as you go over them
  • Excessive noise when going over uneven terrain
  • Loud screeching while parking or going at low speed

Stop by The Muffler & Auto Express and we''ll get you in and out in no time. Don''t let a small issue escalate to a major repair. Bring your vehicle in and we can assess the problem. It may be a lot smaller than you think! 

Remember that steering and suspension parts can and do wear out. To maintain the safety of everyone in your car, get a diagnosis from our expert technicians. And we''ll get your car back on the road so you can enjoy it again.

When you turn on your ignition, the solenoid receives electricity from the car battery and then engages the starter with the flywheel.

The starter turns the flywheel, which turns the engine crankshaft, which in turn starts the motions of a running engine.


An alternator creates a current by spinning a magnet around at high speed, then running the current through a current rectifier. A rectifier changes alternating current (AC) into direct current (DC), enabling the alternator to produce power to run all the electronics in the car and charge the battery. 

To remain in the best control of your car or truck, have the shocks and struts replaced when they become worn. The shocks and struts are part of your suspension system. They allow you to experience a smooth ride as opposed to being jostled as your car navigates an uneven road.

Your shocks and struts are part of what makes you able to handle your car and drive in comfort. There are many factors that will influence how your struts and shocks wear and last. Some of them include the speeds you drive at, the conditions of the roads you travel and even the weather and how much weight is in your car. So be sure to have our technician check to make sure your shocks and struts are not worn out.

Some signs that your shocks and struts may be worn include: 

  • Excessive noise after you''ve gone over a bump in the road
  • Your car pulling to one side when you drive
  • Bouncing over the slightest dip in the road
  • Your car rocking back and forth after you come to a stop
  • Swaying from side to side while changing lanes

These are just some of the times when it''s wise to have your shocks and struts checked. The importance is not only for your own comfort, but these all- important parts of your car are what help your tires stay connected with the road. If you''re slipping when getting off the highway or going around a curve, don''t take any more chances.  

Since 1981, The Muffler & Auto Express has been the place to take your vehicle for repairs. With a hard-earned customer Approval, The Muffler & Auto Express employs only the finest mechanics and staff to assist you all the way from the moment you step through the door to the minute you drive your car off the lot in like-new condition.

Custom pipe bending is an art and a skill that not all muffler shops have perfected - or even offer. At The Muffler & Auto Express we specialize in custom fit exhaust systems for any project that you may need  

Experience & Dedication to the Best 

It takes years of experience to develop the types of systems we take pride in here at The Muffler & Auto Express. We do our best to meet your needs and make your systems look as though they are factory replacements or the custom job of your dreams - whatever you are going for. "High and tight" is our motto. 

We take pride in every car or truck and want it to look as though we were bending it for ourselves. 

Your cooling system has the important job of keeping the engine from overheating. In order for your engine to stay at the optimum temperature, your coolant has to be regulated. There are many parts of the cooling system that need to be monitored. These include the radiator, thermostat and the water pump. You may not know from just a visual inspection if your cooling system is working properly. And you may assume that if you don''t see anything smoking, there''s no problem. But you don''t want to wait until your car overheats on the highway to bring it in. Take precautionary measures.

Our First-class technicians at The Muffler & Auto Express can help diagnose problems with your cooling system before they reach a hazardous level that could leave you stranded. They will give their results to you in plain English, help locate the most cost-efficient repair parts, and have you on your way in no time.  

Some of the parts that should be checked in your cooling system include: 

  • Water Pump
  • Radiator Cooling Fan
  • Coolant Temperature Sensor
  • Coolant Fluids
  • Cooling Fan
  • Radiator
  • Heater

Let our approved mechanics give you peace of mind that your cooling system is working most efficiently. Don''t wait until it''s too late. Avoid being stuck by bringing your vehicle in for a simple inspection.

Your car needs a check up just like you do every so often. You can''t expect it to run indefinitely without doing some routine checks. Leonard''s service technicians are skilled at spotting potential problems before they become bigger. They will discuss their findings with you and give you an up to the penny estimate once they''ve looked at your car.

Come in for a regular tune up or your emissions test. Emission testing is required by law and takes just a few moments of your time. It can be done right on site. And if your vehicle fails, we''ll give you options for repair.

Your tune up and regular maintenance check may include: 

  • Check engine light settings
  • Checking spark plugs
  • Replacing the fuel filter
  • Replacing the air filter
  • Testing your battery
  • Testing your alternator
  • Testing your oxygen sensor
  • Topping off fluids and checking for leaks
  • Running other diagnostic tests as needed

Your car is only as dependable as its parts. So be sure you have everything checked and don''t assume it''s fine.We can put your mind at ease by confirming everything is in top working condition. You''ll drive out of the lot feeling confident that you''re fully prepared to drive on for many thousands more miles between check ups.

Why trust The Muffler & Auto Express? Because we''ve been right here in Evansville, Indiana servicing your neighbors since 1981. We know a thing or two about cars. And we''re not satisfied until you are. Worried about your budget? We''ll work with you to get the most cost-efficient parts for your repair.

Don''t chance it when it comes to your car. Have all the necessary diagnostics run and systems checked so you don''t break down. An ounce of prevention could save you hundreds of dollars in future repairs. So stop in for a diagnostic check today.

Brake repair isn’t something that should be put off. If you hear a squeaking or grinding sound, that could mean worn brakes – and you should get your vehicle into The Muffler & Auto Express right away. Our highly trained technicians will get your car back in shape in no time. 

  • Brake Lights: If your emergency brake is on or you experience an extreme drop in hydraulic pressure, your brakes may be near failure.
  • Grabbing: If your brakes are touchy and grab with even a bit of pressure, it can indicate a variety of things – something as small as oil-contaminated lining or as serious as broken components.
  • Hard Pedal: When your brakes require extreme pressure to work properly, this may indicate frozen calipers, power brake trouble, restricted hydraulic lines, and more.
  • Low Pedal: If your brake pedal nearly touches the floor before the brakes deploy, you may need a simple adjustment – or, it could indicate something more serious.
  • Pull: Sometimes, vehicles pull to one side when the brake is applied. This could mean mis-adjusted brakes, an under-inflated tire, or that your brakes are in need of repair.
  • Squeal: Brakes should make a minimal amount of noise. If you ever hear squeaking, screeching, groaning, or grinding, bring your vehicle into The Muffler Express for an inspection.
  • Vibration: If you feel vibration in the brake pedal or steering wheel when your brakes are applied

Keeping your belts and hoses working properly is one of the best things you can do to ensure your car or truck will run smoothly. The hoses and belts in your vehicle are the lifeline to your engine and connect the inner workings. While today''s hoses and belts are high quality, they can''t last forever. So be sure that you bring your vehicle in for a check up to make sure all the belts are free of wear and tear.

You may have been lucky so far and never had to repair a belt or hose. But when it''s time to have them looked at, our technicians are highly qualified to work on every make and model of car and truck on the market today. They can inspect your vehicle and let you know if any of the important mechanisms under the hood need to be replaced or repaired.

You should be aware that driving conditions as well as the age of your car or truck can contribute to wear on your belts and hoses. Here are a few of them that may need to be replaced periodically: 

  • Serpentine Belt
  • Brake Hoses
  • Coolant Hose
  • Fuel Hose
  • Fan Belt
  • Drive Belt
  • Heater Hose
  • Radiator Hose

What causes the AC system to fail?

Failure of the AC system can be caused by a variety of factors, so it’s best to bring it into The Muffler & Auto Express so our certified technicians can diagnose the problem. Possible factors include:    

  • Loose or broken drive belt 
  • Slipping compressor clutch
  • Blown fuse
  • Leaking component
  • Partially clogged filter
  • And more…

How can The Muffler & Auto Express help?

The staff at The Muffler & Auto Express will check your vehicle’s air conditioning system to ensure it’s functioning properly. If they detect a problem, they’ll provide the service needed. This may include recharging the system, checking belts, evacuating the AC system, or recycling used Freon.

The Muffler & Auto Express has been installing custom performance exhaust systems and performance mufflers since 1981, why trust anyone else.

More Power, Better Sound & Look

The original equipment exhaust system on your car or truck was probably designed to be quiet while still providing performance up to the manufacturer''s standards.  

Performance exhaust systems allow exhaust gasses to flow through faster and offer different exhaust tones depending on your taste.  We offer the best custom performance exhaust systems available in the Tri-state (and beyond) - even offering  stainless steel exhaust systems.

The Muffler & Auto Express Oil Change Guarantee

We promise to perform the following on each oil change or it''s FREE! Our signature oil change service is unlike any other. We not only change your oil with quality Oil products, we also perform multiple services that include: 

  • Change Engine Oil install up to 5 quarts
  • Lubricate all grease fitting
  • Perform & Present Safety Report
  • Set Tire Pressure
  • Top Off All Fluids
  • Install Oil Change Reminder
  • Check All Lights
  • Reset Maintenance Light 

Sometimes a simple fix is all your muffler needs. We provide dependable, quality service to ensure a properly functioning exhaust system, which sounds better and performs efficiently. Read more about our value-oriented replacement and repair services.

An exhaust system can provide better gas mileage and noise reduction. We provide high-quality mufflers, pipes, and exhaust system components. Read on to understand how our service offering works for you.

Gas Mileage

The exhaust system is an integral part of your vehicle; keep it running smooth and get better performance by replacing your muffler with an exhaust system geared for efficiency.

Although efficient performance ends with exhaust emissions, it begins with air intake. Any resistance through this channel puts a damper on your vehicle’s acceleration. If your air filter is inefficient we recommend a replacement or a high air flow filter.

Noise and Emission Reduction

The muffler safely transmits fumes of burnt gas away from your car. Before those gas-fumes exit the muffler, environmental regulations require filtering through your vehicle’s catalytic converter. Regulations require emission control, but that doesn’t mean you have to settle for restricted air flow. We install catalytic convertors, made from durable materials, which meet legal requirements in 49 states and pass EPA regulations. Although we install a variety of manufacturer products, the most popular are MagnaFlow and Flowmaster. Quality workmanship and great products result in an installation that lasts for many years, without declining performance.