Crankshaft position sensor

STEPHANIE FLICK GLOWACKI

MEMBER
2010 CHEVROLET COBALT
2.2L
4 CYL
FWD
AUTOMATIC
117,000 MILES

I have been having a problem with my car when it is stopped at a red light while running. When I am stopped, the car will idle roughly and will jerk back and forth. I have replaced the camshaft position sensor because I thought this was the problem at first. I just put the new camshaft position sensor in and now when I am in park and put car in reverse, the car idles and turns off. Did this twice. Could this be due to a bad/failing crankshaft positioning sensor? Or something else?

3 Replies

HARRY P

MECHANIC
2,293 POSTS

What other things have you checked? Have you changed the air filter and fuel filter? They can cause rough/erratic idle if they get clogged. What made you think it could be the cam position sensor? Any codes?

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Saturday, June 10th, 2017 AT 7:08 PM

STEPHANIE FLICK GLOWACKI

MEMBER
2 POSTS

Two weeks ago I got an oil change and they changed the filters. Yes, I am received couple engine codes: P0011, P0013, P0014, P0016.

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Saturday, June 10th, 2017 AT 7:34 PM

HARRY P

MECHANIC
2,293 POSTS

Being that all of those codes are cam and crank sensor related, I think that you probably need the timing chain itself replaced. From my research, this combination of codes generally points to the chain being worn out.

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Sunday, June 11th, 2017 AT 5:06 AM