Skip the auto shop - Our mechanics make house calls

Q: Camshaft position sensor actuator A. Bank 1

asked by on

Car starts and runs then when u turn the car off and start it up again it runs rough and misses out sometimes when if u push the gas down it will smothered out. ..just started this last week

My car has 90000 miles.
My car has an automatic transmission.

A: Hi there. Most modern engines have both cam...

Hi there. Most modern engines have both camshaft position sensors (multiple) and crankshaft position sensors. Camshaft position sensors, in conjunction with crankshaft position sensing, allows very precise timing for ignition and fuel injection. When a camshaft position sensor fails, or works sporadically as in your case, engine management shifts to a "degraded timing mode" which is less precise, throws the Check Engine code for the failing cam sensor, but will still run. To have this taken care of, I recommend having a professional, like one from YourMechanic, diagnose the stalling problem and perform the proper repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: cranks but wont start it shut off

The most common cause of the 4.0 engine not starting is the crankshaft position sensor going bad. You can scan the engine and see if you are getting an RPM signal. If you are not getting signal, then the sensor...

Q: Truck keeps turning off after 10-20 mins of driving and when its at low idle. Not sure why?

Hello. P0340 is the trouble code for an issue with the vehicle's camshaft position circuit. The circuit includes the sensor built into the distributor, as well as the wiring that carries the signal to the computer. If the distributor is...

Q: Rough Idle Problem

A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...