2002 Gmc Sierra Siera 2500hd 6 0 L Vortec Engine Automatic Transmission Matter

2002 GMC SIERRA
195,000 MILES
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I have a 2002 GMC siera 2500HD with a 6.0 L vortec engine and automatic transmission! No matter what gear i put it in it only goes foreward! Even in reverse and nueteral and if u rev the engine in park it boggs out it wants to go foreward but dont cause its in park!!! I checked plungers and wiring inside the oil pan! Can it be the shift silanoids? Help plz anyone! Or do u kno where to get free wiring diagrams or manuals?
Nov 23, 2012 at 1:17 AM
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ASEMASTER6371
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sounds like the front clutch is seized and will not release. have a trans shop verify this. it may have to come out and be inspected.

doubt very much it is wiring or solenoid. this is basic hyraulics.

Roy
Nov 23, 2012 at 4:12 AM
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