Katt’s Muffler & Auto Repair Inc.
Phone Icon (773) 997-2424
Hours: Monday – Friday, 8:00 a.m. – 6:00 p.m. | Saturday, 8:00 a.m. – 1:30 p.m.

Auto Diagnostics Shop in Chicago

If your car is making a strange noise or emitting an unusual smell, you would probably assume it’s time to take it into the shop. Not everyone fully understands the importance of a check engine light, however. Our reputable auto shop has a highly efficient and thorough auto diagnostics shop that can define the trouble with your vehicle. You can rest assured that we will find the problem and give you a quote for the repair at a reasonable price. As a locally owned and operated business, we see ourselves as more than just a repair shop – we are a part of the community. 

When you come to our shop you can expect to be treated like a valued costumer, because we are interested in building a business relationship based on honesty and superior service. We want you to leave our shop knowing that you’ll come back the next time you want high-quality auto repair, and that you can recommend us to your friends and family with confidence. Making you a return customer is our goal, and we manage that by making sure we provide the car diagnostic service that keeps you from needing to come back for a while.

Efficient & Precise Check-Engine Light Service

When you first notice that your check engine light is on, make our shop your next destination. You won’t be waiting long for our check-engine light service, and the time it takes to set your mind at ease is worth a small fraction of the day – particularly since your safety and the safety of your passengers may be at stake. The following are a few of the reasons your check engine light may be on, many of which are serious and immediate points of concerns for an operating motor vehicle:

  • Malfunctioning Thermostat
  • Oxygen Sensors Need Replacing
  • Needing to Tighten a Loose Fuel Cap
  • Old & Worn Out Spark Plugs & Spark Plug Wires
  • Needing to Replace Ignition Coils, or Ignition Coils & Spark Plugs
  • Needing New Fuel Injectors
  • Old, Worn Out Catalytic Converters
  • Malfunctioning Mass Air Flow Sensor
  • Exhaust Gas Recirculation Valve Needs
    to Be Repaired or Replaced

Our skilled and experienced technicians use the latest tools and computer software to quickly determine the problem with your car, truck, or sport utility vehicle. We know that your time is valuable, and we act accordingly. Once we have performed our check-engine light service diagnostics, we will immediately give you an accurate and honest estimate for the best course of action to repair your vehicle.

You won’t be left wondering how we came up with our numbers, either. It is part of our policy to provide excellent customer service and facilitate return customers, so we’re open about our parts and labor costs. That way you can have peace of mind about more than just our outstanding and reliable results.

Effective & Efficient Car Diagnostic Service

A thorough and comprehensive car diagnostic service is the first procedure we perform on any vehicle brought to our facility. Before we bring you any repair estimates, we use our state-of-the-art methods and auto-diagnostic tools to find the exact source and locations of the mechanical or electrical issues causing problems in your vehicle.

Mechanic Running Diagnostics in Chicago

We pride ourselves on our outstanding reputation for honesty and integrity, and we will never recommend unnecessary repair services for your vehicle. No matter what type of repair your vehicle needs, the mechanics at our auto diagnostics shop are ready to complete it and have you safely back on the road before you know it.

What Should You Do When the Check-Engine Light On?

Every make and model of vehicle is different, so a check engine light on your dash could indicate multiple different problems. Since we work with all makes and models of foreign and domestic cars, trucks, and SUVs, we can are equipped and ready to help you determine the root of your automotive difficulties. We utilize only state-of-the-art diagnostic equipment, and have more than two decades of practical experience in the automotive industry. If your check engine light is glaring up at you from the dash, don’t delay. Bring your vehicle to our repair facility and experience the difference of working with candid and seasoned mechanics.

After finding the problem with your car, truck, or SUV, we work quickly to resolve the situation and get you back to your busy day. Before we begin the repairs, we bring you a detailed price quote for all of the services that your auto needs, so that you drive away with a flawlessly functioning vehicle. Our superior knowledge base allows us to recommend optional maintenance which will improve your car’s longevity and performance, as well as the necessary repairs to ensure your safety and the day-to-day functionality of your vehicle.

A check engine light on could indicate something as simple as a loose cap that needs to be addressed, or perhaps a sensor which needs to be reset, but it can also mean you have a much larger problem at hand. Sometimes the problems are even as serious as malfunctioning valves or emissions regulators, or your vehicle's engine itself. Some of the repair services we offer include the following options:

Contact us today when your check engine light is on. We offer quick auto diagnostics for vehicle owners throughout Chicago, Illinois, and the surrounding areas.