1992 Other GMC Models Trouble with Transmission

1992 GMC
181,000 MILES • V8 • 4WD • AUTOMATIC
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SALLY07
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  • 1 POST
Recently purchased transmission from Advance Auto.
I have installed it. Also have installed Rostra harness.
Color codes to color codes according to instructions.
Trans will not shift.
Feb 1, 2010 at 6:41 PM
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HMAC300
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  • 48,601 POSTS
go over everything you did with the instructions. make sure you have good connections, then contact their tech support to see if they can figure out what is wrong. sometimes changes are made with these installs and creates problems like you are experiencing.
Feb 8, 2010 at 8:18 PM