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NastyBuzzard · 05-08-2014, 10:28 PM

Actually after some reading. It may be starting out in 3rd gear. Rpms were crazy low and wouldnt pull itself up a small embankment. If I drop it all the way down in 1st manually it does downshift but may only be going to 2nd. So I may be in limp mode... Need to investigate some stuff.

05-08-2014, 10:28 PM	#35
NastyBuzzard Registered User Join Date: Oct 2013 Location: Saluda, SC Posts: 1,276	Re: 1987 GMC V1500 Sierra Classic LS swap/build Actually after some reading. It may be starting out in 3rd gear. Rpms were crazy low and wouldnt pull itself up a small embankment. If I drop it all the way down in 1st manually it does downshift but may only be going to 2nd. So I may be in limp mode... Need to investigate some stuff.