» » »

Buick Q&A

Ask Your Question

2001 Buick Park Avenue Question: Speedometer is reading 20 to 30 mph too fast.



, 3.8L V6, Kingfisher, OK, January 16, 2012, 19:12

I am ASE mechanic as side job.

1 Answer
Flag This
  • Answer #1

    January 16, 2012, 21:44

    make sure you have the correct tire size on the car.

    otherwise, the trans gear inside the governor may be at fault.


    Flag This
  • Reply

    , January 17, 2012, 12:00

    The tires have not been replaced, it just started doing this about 1 week ago. I suspect the speed sensor is failing.

    Flag This