2001 Pontiac Grand Am Repair Question
What would make a speedometer read incorrectly?
have you had any transmission work done lately??
there is a speed sensor for the speedometer that may be reading wrong or has the wrong ring for the speedometer.
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HAVE YOU PUT OVER SIZED TIRES ON IT?? IF SO THAT WOULD CHANGE IT
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No tranny work or over sized tires. I didn't know how long it has been wrong. I got pulled over the other day. The officer said I was going 66, but I had the cruise set at 60. So I downloaded a GPS speed tracking app. It seems to confirms the problem.
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