i put new bearings in the motor & put it back in went 4 a test drive & the stupid thing doesnt shift untill the rpms get up there & u take ur foot off the accelerator. is there a vacuum line off or what do the shift off of? its a 92 jimmy
1992 jimmy, i think the transmission in there is still the 4L60 and not the 4L60E. Check your TV cable and make sure it's adjusted right, it it's the 4L60E then Check the TPS.
http://www.youtube.com/watch?v=WWEq5-PM8Ac&feature=related
It is probably the cable.... in the 1992 jimmy's with 4L60 transmission.
They are pretty apt to slip adjustment at the bracket by throttlebody/carb.
The"teeth" of its ratchet assy will allow it to slip loose thus changing the shift points.
Sometimes it gets oily or just goes bad and releases the hold.
Where I mean is at the part that has the round"button" near the bracket holding it on intake. if this "button" is pushed it releases the cable to move to adjust the setting of cable.
If that looks good then move on to checking these thing.
1. TV Cable - Binding or not correctly adjusted
2. TV exhaust ball - Stuck or damaged
3. Oil Pump Assembly - Stuck pressure reg valve/TV boost valve
4. Valve body Assembly - Sticky throttle valve or plunger
5. Modulated TV up/down valves sticking
6. TV Limit valve sticking
7. line bias valve sticking
8. dirty governor filter
9. 2-4 servo assembly - damaged servo piston seals/apply pin damaged
10. 2-4 band assembly - burned, anchor pin not engaged
Keep me posted.
