Question about 1995 GMC Sierra

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I have a 1995 gmc sierra 4x4. It blows transmission fuses. When i unplug the wiring harnes from the transmission it stops blowing fuses. Is the short in the trans or in the harness? How do you tell?

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  • larry settles Jul 31, 2012

    also have the same problem but when ****** fuse blows dash gauges also go dead

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The short is inside the trans, but you will need to take the pan off and trace each wire to find out where the short actually is. You have narrowed it down pretty well. One way to really narrow it down before you take the trans out is to unplug the connector and put battery power to the PINK wire cavity. Now take a jumper wire with a 10 amp fuse and touch each wire until the fuse blows. The TAN/BLACK is the Torque Converter Clutch solenoid. BROWN is the 2/3 shift solenoid. Lt. Green is Shift Solenoid "A" and YELLOW/BLACK is Shift Solenoid "B". Those 4 solenoids are powered by the Trans Fuse.

Posted on Nov 20, 2009

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