1992 GMC TROUBLE WITH TRANSMISSION

  • Tiny
  • sally07
  • 1992 GMC

Transmission problem
1992 Other GMC Models V8 Four Wheel Drive Automatic 181000 miles

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.

Monday, February 1st, 2010 AT 6:41 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 41,612 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.

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Monday, February 8th, 2010 AT 8:18 PM

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