Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Speedometer is reading 20 to 30 mph too fast.

(2001 Buick Park Avenue)
in Kingfisher, OK on January 16, 2012
I am ASE mechanic as side job.
Displaying 1 answers & 1 comments
Popular Answer
on January 16, 2012
make sure you have the correct tire size on the car.

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

Roy
on January 17, 2012
The tires have not been replaced, it just started doing this about 1 week ago. I suspect the speed sensor is failing.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
replaced crank sensor did not help. One mechanic said it could be a ignition module. The buick dealer says it is an o...
Didn't find what you were looking for?