what would cause the car to surge between 45-50 mph, happens mostly when going up a slight incline

Asked by Mar 24, 2015 at 07:29 PM about the 2001 Buick Park Avenue

Question type: Maintenance & Repair

2 Answers


sounds like maybe a shifting problem. have the computer scanned for codes.


Sometimes it's as little as a broken vacuum hose, have your car scanned at an auto parts store. If the scan shows nothing electronic it could be just a loose or broken vacuum hose. Check around the PCV hose they often go bad with age

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