[hardwurkindaddy]

1996 GMC Jimmy, 4.3L, 4X4, picked it up for 75 bucks, kid says the trans is bad, but it shifts fine after sitting for a couple of days, after a few miles goes into limp mode, IE: starts in third can manually shift to second, no 4th or TCC lockup, CE light is on. I have heard this can be a simple fix so any ideas would help me out greatly as at this point I need this vehicle badly.

[Crosley]

Originally Posted by hardwurkindaddy

1996 GMC Jimmy, 4.3L, 4X4, picked it up for 75 bucks, kid says the trans is bad, but it shifts fine after sitting for a couple of days, after a few miles goes into limp mode, IE: starts in third can manually shift to second, no 4th or TCC lockup, CE light is on. I have heard this can be a simple fix so any ideas would help me out greatly as at this point I need this vehicle badly.

Check engine lite on in the dash?

have you checked the fuses for bad ones? Check for corrosion on the fuses too, perhaps use a volt - ohm meter

[hardwurkindaddy]

Yes the dash light is only lit when the trans goes into limp mode, when its shifting fine at first it is off. Will check the fuses, I assume I am looking for standard 12 volts?

[Crosley]

you need to scan for codes if the dash 'check engine' lite is coming on...

[hardwurkindaddy]

Guess I got to take a trip to AutoZone then...no scanner out here. I hate to drive it though if its a bad problem, may end up worse than I started.