Questions and Answers

Pontiac Grand Prix Speedometer Q. Hi I have a Pontiac Grand Prix LE 3.1 liter engine. While driving down the highway, when I feel like I'm going 60 mph, the speedometer reads 90 mph and the cruise control stopped working. I noticed a little smoke on the steering column. If you know what might be the problem please let me know.

A. You need a scan tool and drive it while watching the Vehicle Speed Sensor (VSS). The sensor may be out of whack.