Learn 5 common causes of a lit check engine light, and what you can do to take care of it.
O2 sensors monitor your engine's air-fuel mixture, so a bad one means trouble down the road. Learn the signs to watch out for.
Check engine light on? You can use AutoZone's Free Fix Finder Service to get a free code reading and vehicle health report.
Learn the symptoms of a bad throttle position sensor and, if yours is bad, the replacement procedure.
Learn what the most common issues are that cause a lit brake light.
A faulty MAF sensor can cause your vehicle to run too rich or run too lean. You'll notice if the tailpipes eject black smoke or when the engine seizes.
Cleaning the MAF as part of regular routine maintenance can help reduce and/or prevent problems.