HELP please!

MMPRINCE4000

MECHANIC
ALL OTHER MAKES ALL OTHER MODELS

Can someone help this donator? I think his problem is he is using the wrong (different year) trans. and will probably have to either get the old one rebuilt or get the correct (used) trans. But frankly I have no solution other than what I stated above, and I don't think he wants to hear that from me.....Thanks.....Paul

http://www.2carpros.com/forum/1992-gmc-van-no-upshift-from-first-gear-vt263812.html?highlight=

He is getting to the point that he will have everything so buggered up that he will never get this thing running.

Friday, April 10th, 2009 AT 3:13 PM

3 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Hi,

Both trans seems to be having same problem and I suspect it could be VSS fault, might be PCM is not receiving correct signal or is faulty and not computing correctly.

I have asked a few questions and hope we can work this out well.

Good luck to us ;)

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Friday, April 10th, 2009 AT 8:40 PM

RASMATAZ

MECHANIC
75,992 POSTS

To add on to Mr. Low -this is what I know about ECT

1. TPS takes care of the throttle pressure

2. VSS inputs the governor speed

3. Coolanr sensor controls overdrive in a given temperature

2 tranny same condition? I'll go at the wiring and the brain that controls it-

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Friday, April 10th, 2009 AT 10:48 PM

MMPRINCE4000