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 9:17 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 12:12 PM
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