Question about 1997 Chevrolet Tahoe

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Gauge cluster/ transmission electrical problem

I have a 1997 Chevy Tahoe with a electrical problem. While driving or just sitting the tach goes to O and the speedo drops to 0. The Transmission stays in overdrive when this failure occurs. I have check all fuses, including the PRNDL, auto trans fuse. All are good. When I can get the failure to happen I check the voltage on the PRNDL and it is @ 5 volts. I remove the gauge cluster and the voltage goes back up to 12+ volts. I put in a new cluster and have the same problem. I can not find a electrical diagram showing me how the gauges and the transmission are linked to know if I have an electrical problem on the transmission.

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Ignition switch check ignition voltage.... www.TransmissionGarage.com

Posted on Dec 30, 2009

  • Kenneth Beery
    Kenneth Beery Sep 30, 2012

    Would this also be the case with my issue JUBLE ?? 95 Tahoe.. Ran great until 2 weeks ago... The PRND2 light would flicker & when it is on like always, the truck runs great... If the light is not on when you try to turn igniton and once started, the truck runs super rough, no power, barely moves..I can go out tomorrow and light PRND2 will be on, drive down to post office, leave truck on and drives great. When I get home, I turn it off, and try to refire, and the light wont come on and when I start it up, truck runs like **** again... I did replace the VSS - speed sensor thinking that was it, but still same outcome....

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