Overdrive not working properly

Tiny
P.J.WALKER
  • MEMBER
  • 1996 GMC SONOMA
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
First, second, third shift perfect. No overdrive. It does not slip at overdrive range or rev up at overdrive range. It just hold steady in third.
Friday, November 2nd, 2018 AT 4:30 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
It sounds like a shift solenoid has gone out. I would remove the 2-3 and 3-2 to test and make sure they are working, here is a diagram below.

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Sunday, November 4th, 2018 AT 11:07 AM

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