Question about 2002 Chevrolet Impala

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Where is the PCV on a 2002 Chevy Impala?

The car has a rough idle and also some fumes in the car.Could the PCV cause this to happen?

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Doubtful,try spraying the wires and plugs with some windex with the car idling,listen and watch for spark jumping. Plug wires are often the cause.

Posted on Jan 01, 2009

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I have a 2006 Impala the engine is surging at idle and when I driving


Check the vacuum hoses for a leak.

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I got code p2176 I changed out the tps still got same problem did not have this problem with other engine just changed engine out now cant seem to get this code off causing the car to rough idle and low...


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Did you use all you old sensors,or is some of them from the new engine,I would swap out the IAC sensor or check for wires not hooked up.
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This sounds like a possible bad fuel pressure regulator.
Depending on which engine (3.4l or 3.8l) they can be easy or hard to replace. For pics on the 3.4l regulator replacement, see this link...
Tech JK
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Dec 21, 2008 | 2002 Chevrolet Impala

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