• Tiny
  • Kemosobie
  • GMC Sierra

I have a 1981 2WD GMC Sierra Classic automatic and I just got the engine replaced yesterday with a 350. When I drive the vehicle, it seems like its not shifting into second gear. The engine revs really high and just stays in 1st gear. Eventually after awhile the truck makes a clunking noise and lunges forward and finally switching into second, but stays in second. Before this it just reved really high and changed, but after I filled up the tranny fluid after it was very low, this problem was produced.

I know for a fact that there is no leaking either. Where could the fluid gone :P

What ya think the problem is?

Do you
have the same problem?
Sunday, March 5th, 2006 AT 11:19 PM

1 Reply

  • Tiny
  • rugruv
  • Member

Sounds to me like your kick down / TV cable is out of adjustment. If you have a Haynes manual, there are simple instructions there that could help you adjust it. Otherwise, stop by the dealer or a good tranny shop and they should check the adjustment for you.

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Monday, March 6th, 2006 AT 10:17 AM

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