My 2008 Sts Cadillac bucks while driving

Asked by May 01, 2019 at 12:33 PM about the 2008 Cadillac STS

Question type: Maintenance & Repair

Car has new plugs & shows no code, bucks while driving

1 Answer

87,475

That bucking action is most often from misfires. Other common causes for this are dirty injectors; clogged or defective EGR & PCV valves, vacuum leaks, and bad ignition coils, spark plugs & wires. Maybe a good tune-up is needed.

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