GMC Troubleshooting Questions? Ask a Mechanic for Answers
I am sorry your having this problem
the gear display shows reverse and what position is the shifter in ?
thank you for that information
if you get under the drivers side of the transmission and locate the shift cable at the transmission can you see if it is still connected to the transmission and if it is and the cable is not broken pop off the cable off the little metal lever and see if you can shift the transmission by hand with the little lever
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