Quote:
Originally Posted by jheast517
I have a 1996 chevy z71 truck with a 4l60e transmission the transmission is in limp home mode it seems to work fine when i first drive it but when it warms up it takes off in 3rd gear i check the fluid fuses under the hood hook a scaner to it no transmission codes i can manuly shift throught all the gears with the scaner and they work fine i check the wireing to the trans and it looks good and the wireing going to the pcm i just put a used pcm from the junk yard i bought this truck a week ago and it didnt run when i bought it and now i got it running good and the trans is in limp mode someone please help me thanks
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Was the transmission acting up before you changed VCM/PCM?
To check out transmission or get transmission codes you need a engine/transmission capable scanner.
OBD11 sscanners or code readers will not do transmission problems.
Post back any codes you get from a transmission capable scanner.