A faulty camshaft sensor results in numerous problems with a car, including an illuminated check engine light, a poorly running engine and difficulty or failure to start. The camshaft sensor replaces the distributor in many modern cars, and if it malfunctions, the spark plugs fail to fire correctly. According to O'Reilly Auto Parts, faulty camshaft sensors are the 11th most common automotive repair.Continue Reading
The camshaft sensor monitors the position of the camshaft and sends the information to the car's electronic control module. This on-board computer uses the information along with information sent by other sensors throughout the drivetrain to determine when each spark plug should fire. When the sensor is bad, the control module has no way of knowing the location of the camshaft.
Camshaft sensors normally do not fail immediately. Damage from wear and tear or accidents causes them to become less effective at transmitting their signal. When the sensor first starts to malfunction, the car remains drivable, but the operator may notice an occasional engine miss or the vehicle becoming more difficult to start. A sensor that is already malfunctioning grows worse with extremes in temperature that come with seasonal changes. Drivers who suspect a problem with the sensor should have a mechanic check and replace it to ensure that the vehicle starts when temperatures start to change.Learn more about Car Parts & Maintenance
A lit check engine light in a vehicle is indicative of one or more problems including faulty oxygen sensors, leaking hoses or manifolds, damaged fuel injector O-rings, a blown head gasket and a loose or damaged gas cap. A blinking check engine light indicates an emergency problem that requires repair.Full Answer >
Typically, the camshaft sensor is located at the top of the engine to the front and mounted near the crankshaft in front of a wheel. The wheel has windows or slots that allow the sensor to count each revolution of the camshaft. The sensor is readily accessible if it needs to be changed. However, some imported cars, including Hondas, have the crankshaft and camshaft sensors inside of the distributor, requiring replacement of the entire distributor for this type of vehicle.Full Answer >
The check engine light illuminates when the onboard computer detects one numerous issues, including problems with an oxygen sensor, mass airflow sensor, gas cap, spark plugs or catalytic converter. Making repairs quickly when the light illuminates prevents the problem from leading to more costly issues later.Full Answer >
A faulty oxygen sensor can cause several problems in a car including a poor fuel economy, failure of the catalytic converter and an overall bad engine performance. Having a bad oxygen sensor can also send the the "Check Engine" light to go on or in more recent car model, send an O2 sensor code to the car's computer.Full Answer >