CARS.COM — Most car owners probably don’t know that their vehicle has a crankshaft position sensor until the engine dies, won’t start or starts running poorly. Then when the car is in the auto repair ...

Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...

It is best to replace spark plugs at the manufacturer's recommended interval, even if they appear clean. Batteries in tire pressure sensors are not replaceable; the entire sensor unit must be changed.

Tire pressure monitoring sensors (TPMS) work by constantly measuring the air pressure within all four of your tires, then relaying that data to your car's computer. If the system is unable to measure ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...