If the car seems to be running well, drivers will sometimes ignore an illuminated check engine light. However, waiting too long to investigate could lead to more expensive repairs or even engine significant damage. At ATL Total Car Care, our local mechanics provide expert check engine light diagnostics and repair in the greater Murfreesboro area. Here’s a look at four common problems that can trigger the check engine light and why they should be addressed right away.

Faulty Oxygen Sensor

The oxygen sensor monitors the amount of unburned oxygen in the exhaust and helps the engine control the air-fuel mixture. If this sensor fails, your engine may burn more fuel than necessary and emit more pollutants. Ignoring a faulty oxygen sensor can cause poor fuel-economy, increase emissions, and potentially damage the catalytic converter, which is a more costly repair.

Malfunctioning Catalytic Converter

The catalytic converter plays a key role in reducing your vehicle’s emissions by converting harmful gases into less harmful substances. If it starts to fail, you may notice a decrease in engine performance and fuel-efficiency. Ignoring this issue can eventually lead to engine misfires.

Problem with the Mass Air Flow Sensor

The mass air flow (MAF) sensor helps your car’s computer determine how much fuel to inject based on the amount of air entering the engine. A malfunctioning MAF sensor can lead to rough starts, poor fuel-economy, and even stalling. 

Failing Ignition Coil or Spark Plugs

Ignition coils and spark plugs are vital for starting your engine and keeping it running smoothly. When these components begin to wear out or fail, you may experience rough idling, reduced acceleration, or misfires. Replacing faulty ignition components can restore proper engine function and help prevent trouble from escalating.

Check Engine Light Repair in Murfreesboro, TN

When you need auto repair in Murfreesboro, TN and the surrounding area, contact ATL Total Car Care at 615-813-9970. At our local auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment!