2002 grand prix has surging problem when accelerating below 3000 rpms. Replaced cat and O2 sensor that was giving code. No check engine light is on now but still have surging. Could this be a trans?

Asked by Dec 22, 2013 at 02:23 AM about the 2002 Pontiac Grand Prix GT

Question type: Maintenance & Repair

1 Answer

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If you have never changed the transmission fluid or filter, do that and see if it solves the issue.

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