Hi my Vovlo Speedometer and tachometer are not working? How do I fix it? Is it a lose cable?

replace the cable for the speedo as it may have been removed so that correct mileage was not recorded
the tacho gets its signal from coil impulses or ignition module so check for disconnected wires

Hi, I would think it either has a blown fuse or more likely would need a replacement instrument panel installed. Could be $100 to $300 used for the part depending on where you get it. Installing it would probably be 1 or 2 hours labor if you do not know how to.

If it used the mechanical speed cable. Check the speedometer cable attachment at the speedometer in the instrument panel. Check the speedometer cable and speedometer sending unit assembly on the transmission.

SOUNDS TO ME LIKE YOUR TACHO CABLE HAS COME LOOSE, CHECK THE BUILD MANUAL OR THE WEB FOR ITS LOCATION & REMOVAL/REPLACEMENT PROCEDURES

Hi Norton,

What has happened is your speedometer and tachometer drive motors are failing inside your silverado instrument cluster. I see this very often in GM trucks, to fix the problem you need to have your instrument cluster rebuilt.

Check out this article that talks more about it http://drspeedometer.com/chevy-silverado-instrument-clusters-why-they-quite-working

Thanks,
Fred

Since the speedometer comes off the transmission and the tachometer comes off the ignition, they are totally separate except for the ground circuit. So check the dash ground cable, or add another one.

This is a common problem on the 05 Mustang instrument clusters, it can be fixed, check out this page for more about how to get it fixed - 05 Mustang speedometer fix

http://www.tacomaterritory.com/forum/

I would suggest that you check all your fuses first. The tachometer isn't run by a cable, just one wire coming from the distributor

check the vehicle speed sensor located on the transmission housing.