• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

Speedo not working

OBS 94’ Z

New Member
Reaction score
Have a 1994 Chevy Silverado. All other gauges are working except for the speedometer and odometer. I started by checking the VSSB behind the glove box. And checked the ground on the drivers side near the parking brake release.

I just recently checked the the male end of the connection going to the speed sensor on the trans with a test light and had nothing. However, when I hit a hard bump or go through some water it starts working for a minute then stays at zero the rest of the time. Any help or advice on where else to look would be greatly appreciated!!!