I was on the way home from just buying this 01 camaro and it seemed as though i was going 30 but the speedo said i was going 55 and when i felt i was going 55 it sayed i was going 70??? I know the speed can creep up on you in a camaro but this is rediculous. I was on my way to work going 70 on a little road and heck everybody was riding my tail. So i went 90. lol Last week i bought a speedo for my car and so i know that its not my gauges now. What else could it be. Or is it just me lol

 

There are a few ways to check it. Either by using a scan tool and monitoring the vehicle speed, by using a hand held GPS unit that displays speed, or to simply have a friend set their vehicle at 55mph on cruise control and try to match his speed and comparing the numbers.

A faulty vehicle speed sensor may sent incorrect information to the PCM and to the gauge.

 

Ok I checked my speed and got my brother to go 55 in his s10 and my car was reading 72mph. I need to know where the speed sensor is and how to fix this problem. Also does anyone know if this will put extra miles on my car.

Thanks in advance

 

Are the tires on your car stock and sized right?

 

Yes they are stock and sized right.

 

it shouldnt add milage, cuz i beleave it's a differrent sensor in tranny, although if tires were diff, it would effect tach