Idle is very boggy, the truck is a 350 on propane and also very rough shifting into 2nd gear, clutch is good please help!

Asked by Feb 13, 2017 at 10:34 AM about the 1992 GMC Sierra 2500 2 Dr C2500 SLX Standard Cab LB

Question type: Maintenance & Repair

1 Answer

91,885

The bogging problem is probably something a propane specialist would need to deal with. Check your gear oil level in the transmission.

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