2002 Chevy Malibu misses

CODYFIELD

MEMBER
2002 CHEVROLET MALIBU
6 CYL
FWD
AUTOMATIC
134,000 MILES

It misses at idel speed but quets when accelerating and at hwy speed. I have put the code reader on it and it says miss fier on cylinder one. I have put new plugs and wiers fuel filter PVC vavel air filter and replaced all intake gaskets and put a new injector in cylinder one. But is stell mising

Friday, October 31st, 2008 AT 8:52 PM

7 Replies

DENNYP

MECHANIC
1,824 POSTS

Is there corrosion or carbon tracking on the cylinder 1 coil tower?

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Friday, October 31st, 2008 AT 9:50 PM

CODYFIELD

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5 POSTS

No, they are clean and seem to have a good spark it will only miss when in gear

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Saturday, November 1st, 2008 AT 10:54 AM

DENNYP

MECHANIC
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It sounds like spark jumping to a ground, or a mechanical problem. This would be best to have a shop check it out. It is going to take some time aand specialized equipment to diagnose.

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Saturday, November 1st, 2008 AT 1:31 PM

CODYFIELD

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5 POSTS

I fixed it. It was a blown head gasket

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Thursday, November 6th, 2008 AT 5:54 AM

DENNYP

MECHANIC
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Was it losing coolant?

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Thursday, November 6th, 2008 AT 1:16 PM

CODYFIELD

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Yes, but I thought it was the intake gasket that I had changed befor

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Sunday, November 9th, 2008 AT 10:47 AM

DENNYP

MECHANIC
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All the little details, no matter how small, will help us to find the best diagnostic route. I'm glad that you were able to find the problem. The spark plugs will normally show the cylinder that has a bad head gasket.

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Sunday, November 9th, 2008 AT 11:04 AM