2002 Chevy Impala hesitation on engine while driving

GTURN77

MEMBER
2002 CHEVROLET IMPALA
6 CYL
FWD
AUTOMATIC
82,000 MILES

Harmonic balancer was wobbling was told it need to be replaced-replaced immediately- after harmonic balancer being replaced the engine seemed to be hesitating (didnt have this problem prior to harmonic balancer being replaced)to get up to speed the mechanic told me the intake manifold gaskets or valves were leaking-could this be causing the hesitation

6 Replies

JACOBANDNICKOLAS

MECHANIC
109,874 POSTS

Well, yes an intake could cause the problem, but it doesn't make sence that it started as soon as the harmonic balancer was replaced. The two are not related. Regardless, is the check engine light on? Also, check the crank sensor to make sure they replaced it correctly and securely.

Let me know what you find.

Joe

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Wednesday, February 18th, 2009 AT 7:36 PM

GTURN77

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3 POSTS

No check engine light-everything else on the car is ok but that hesitation-Is it a timing issue?

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Thursday, February 19th, 2009 AT 10:22 AM

JACOBANDNICKOLAS

MECHANIC
109,874 POSTS

Hi:
The crank sensor could cause a timing issue if it damaged, loose. Take a look at it to make sure it's not damaged. Also, it's located on the timing chain cover near the harmonic balancer.

Let me know what you find.

Joe

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Thursday, February 19th, 2009 AT 1:42 PM

GTURN77

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No other problems with the car-just took it back to where the harmonic balancer was replaced and the mechanic claims the trans is having trouble shifting from 1st to 2nd gear possibly a solenoid valve and I should have a transmission flush-I have already had one in the last couple months-Would the crank sensor cause this kind of problem-thanks for all your help

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Thursday, February 19th, 2009 AT 3:38 PM

JACOBANDNICKOLAS