Your car’s exhaust system has come a long way from the old days of exhaust pipes and mufflers. Today, the exhaust system is safety and emissions control rolled into one. Have your car’s exhaust system inspected regularly and check it immediately if you suspect any problems.

What does it do?  The exhaust system routes dangerous exhaust gas from the engine out and away from the car to keep from affecting the occupants. Next, the exhaust system reduces exhaust noise from the engine. The catalytic converter reduces the level of harmful pollutants in the exhaust. The oxygen sensors mounted in the exhaust system monitor the level of oxygen in the exhaust gases to maintain efficient engine operation and to monitor the converter’s operation.

A program designed to periodically check vehicle emissions to ensure they are within limits. Often referred to as an I/M (Inspection/Maintenance) program, they are used in numerous states and areas as required by the Environmental Protection Agency to improve air quality in those areas.

The axle on your vehicle is the structural component that connects two wheels together on opposite sites. It's a load-bearing assembly that acts like a central shaft, maintaining the position of the wheels relative to each other and to the vehicle body.

Our ASE certified technicians will inspect your engine's cooling system, record the condition, and compare to manufacturer's specs. Recommendations are made per the Motorist Assurance Program Uniform Inspection Guidelines.

Your modern vehicle's engine is a highly sophisticated piece of equipment. Our factory-trained technicians are here to make sure your engine is in peak operating condition.

The days of your father's gas-guzzler are long gone—instead, Federal Exhaust Emission and Fuel Economy regulations demand that today's vehicles be equipped with electronic engine control systems, to curb carbon emissions and increase fuel efficiency. With technically-advanced control systems taking the place of simple engine components, common maintenance services such as tune-ups are also a thing of the past. Regular services (such as spark plug and filter replacements) are still required, as well as a computerized analysis of your vehicle's control computer. Our factory-trained technicians are here to provide these basic services.

The brake system is actually composed of two kinds of systems---Hydraulics and Friction Materials. Here's what happens within these systems between the time your foot hits the brake pedal and your car stops.

 

While a service engine light isn't necessarily anything to be alarmed about, you should never delay too long in finding out if there's a problem with your vehicle and we’re going to help you with that.

 

In the auto repair industry, where you choose to get your car or truck fixed can make a big difference in the service, quality and price you receive, and choosing the wrong company can lead to a costly drawn-out project that only fixes the problem in the short term.

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Dennis Johnson Auto Repair

1114 Old Railroad Bed Rd
Madison, AL 35757
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location small (256) 230-0400

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Weekdays:   7:30 AM - 5:00 PM
Closed for lunch, Noon to 1:00 PM
Weekends: CLOSED

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