Question about 1995 GMC Sonoma
I installed an after market tachometer into my 2000 GMC Sonoma. It is reading 500 RPM at idle. I have it set to 4 cylinder already.
one field wire to Negative side of coil. Power to power- fuse box that will cut off and on with truck, and ground to ground on the body are battery ground.
Posted on Feb 02, 2009
a light green or white wire in harness above brake booster.
a side note, what scanner do you use to get codes. my 95 has obd1 system with obd2 connection, does yours, thanks
Posted on Apr 05, 2010
I see this a lot on the 03-06 Envoy instrument clusters, it's caused by failing stepper motors on the cluster's circuit board. It can be fixed though, check out this page about how to get it fixed - Envoy tachometer not working
Posted on Sep 30, 2010
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