Transmission problem

Tiny
1992 CHEVY TRUCK
  • MEMBER
  • CHEVROLET
I have a 1992 Chevy Truck, 5.7L, 700R4 tranny. Not sure on the mileage. It says 68000, but not sure if that is actual. The truck will not shift out of 1st gear, and the speedo won't work. The tranny has been replaced with one that came out of a truck that was working. The problem persisted. I read on here that it may be the ignition switch. I replaced the ignition switch. The problem still persists. I thought maybe the computer was bad. I replaced the computer, but had to use the same chip. The problem still persists. The fluid is good. Is it electrical? Could it be the computer chip?
Saturday, January 6th, 2007 AT 5:00 PM

3 Replies

Tiny
1992 CHEVY TRUCK
  • MEMBER
  • 4 POSTS
Any ideas?
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Sunday, January 7th, 2007 AT 1:10 PM
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
Do you mean after you changed the transmission, the 1st gear and the speedo still do not work?
Clutch release problems may be the cause. Shift linkage problems, both internal and internal will also cause the transmission to lock in a gear. Check the adjustement of the linkage. Make sure that the linkage or cable is not binding.
Stuck interlock or detent pins or balls will also prevent the desengagement of gear. So will binding or damaged synchronizer parts, which prevent the sliding action of the sleeve and hub :)
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Sunday, January 7th, 2007 AT 1:43 PM
Tiny
1992 CHEVY TRUCK
  • MEMBER
  • 4 POSTS
Yeah, after changing the tranny, the same problem is still there.
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Monday, January 8th, 2007 AT 9:48 PM

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