why will the transmission not shift into high gears

Asked by 57wmw Feb 16, 2015 at 01:51 AM about the GMC Sierra 1500

Question type: Maintenance & Repair

automatic transmission will not shift into third or forth gear, run fine first, second and reverse.

4 Answers

3,745

Do you have a service light on? How is the Fluid condition? Is it burnt or have any metal filings in it?

10 people found this helpful.
40

Dash light on, fluid ok, no smell, fluid registers on dip stock slightly above hash marks cold. Thanks

4 people found this helpful.
30

Hi got 02gmc Sierra 1500 4X4 reg cab 4.8 I changed transmission and it go into drive? If you can help me call me 607-684-4175 . I wish people would do over haul on my truck make my life easier lol sucks sitten home .grrr Richard peace.I. hard working man I have hitch ride or take bus sucks donkey balls lol

3 people found this helpful.
80

I have the same problem with my 99 Silverado 1500 4.3. no light code about the transmission the fluid level is good and not terrible condition. No smells or nothing. I was thinking solenoid or maybe clutch packs. Idk I'm just a home garage mechanic

8 people found this helpful.

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