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73-87 Chevy _ GMC Trucks => Interior & Equipment => Instrumentation => Topic started by: Tegra1027 on August 17, 2018, 06:05:23 pm

Title: Gauges aren't working.
Post by: Tegra1027 on August 17, 2018, 06:05:23 pm

I just bought an 85 c10. The only gauge that works is the speedometer, and to be fair I'm not sure if it is accurate. Before I go diving in, are there any common issues that would cause this?  Thank you.

Title: Re: Gauges aren't working.
Post by: Rapid Roy on August 17, 2018, 07:23:00 pm

Welcome

Title: Re: Gauges aren't working.
Post by: 75gmck25 on August 21, 2018, 08:35:13 am

The first place to check is the instrument panel ground (black wire) up under the dash.  On your '85 truck I think there is a grounding bar mounted there, but you can also ground it to the emergency brake pedal or other good chassis ground.

Then check the instrument panel fuse to see that its providing power.  Once you get power and ground connected, let us know what is still not working.

Bruce

Title: Re: Gauges aren't working.
Post by: Irish_Alley on August 21, 2018, 08:41:20 am

for our tech pages on the gauges
http://forum.73-87chevytrucks.com/smforum/index.php?board=59.0

and the gauge pin out
http://forum.73-87chevytrucks.com/smforum/index.php?topic=31456.0