Thread: Speedometer is off by 15mph!

I wasn't sure where to place this and I figured it's part of visual electronics. But recently my speedometer reads 15mph while stopped. I asked a guy and he said vehicle speed sensor. Also, my tcc is no longer engaging at the right time. Was curious if that sensor could cause this problem as well and also where is the location of this sensor? Please help. I don't want another speeding ticket. Thanks in advance!

Originally Posted by Undercrazed

I wasn't sure where to place this and I figured it's part of visual electronics. But recently my speedometer reads 15mph while stopped. I asked a guy and he said vehicle speed sensor. Also, my tcc is no longer engaging at the right time. Was curious if that sensor could cause this problem as well and also where is the location of this sensor? Please help. I don't want another speeding ticket. Thanks in advance!

Speeding tickets are the least of your problems if this is happening.

Maybe you should just figure in the extra 15 MPH whenever you're driving then?

Rocket scienceecececennecnene it must be.

mines off by 4-5 vvs reads what it should (thats on the 99 beater i just adjust my speed)

Ok. Aside from adjusting speed, if the vss were to be the issue, would it also cause my tcc to not engage properly? Both happened about the same time. I recently replaced all solenoids in the trans so I don't see the tcc going bad so soon. I also took it to autozone to have the codes checked and the guy told me a dealer code came up. Any ideas?

Go see what the stealer says? trololollll

Originally Posted by blueguy91

Go see what the stealer says? trololollll

Diagnostic would cost more than the car's value.

Good code reader can display speed. Need to look through the computer to see if it's mechanical problem with speedometer or electronic problem.