1996 GMC Safari - Limp Mode
 

Hi guys
New here in GMC forum , usually in Buick ...

Please , I want to buy 96 GMC Safari with a problem : trany stuck in 2 or 3 gear , seller said the problem shown a week after transmission rebuild , he goes to the shop and they check and found that electric problem and not fix it .
( I don't know if it relative but he said the AC not cold when the problem shown ).

Please any help and advice could help

Thanks

My advice. Buy something else.

If the trans has reverse and 3rd only you can see if there is battery power on the E terminal (pink wire) of the trans connector harness side. That circuit is power to all the solenoids inside the trans. Those years I saw issues with the ignition switch. Other than that not alot of info to go on. Hope this helps.

Thank you
for now I can't check the electric system but i try to get ideas what could be the problem , to figure out if it major problem or burning fuse.
Today I start the car with the seller , it run fine in P , and the R moved great . When I put in D it seem OK but feel hard movment.
something else , the speedometer not working at all , and the front AC too .
I think it relative ...

Please keep the conversation to one topic at a time please. If you want, you are free to start an A/C question in a new thread.

Sorry Mike , maybe you don't understand me ... I mention all those fault cause I think they all relative to one electric problem .

The a/c system is on its own. Nothing to do with how an engine runs.

Update : Today I bought the car . :)
I connected to OBDII and pull the faults :
P0753
P1860
P1864
P1886
what I told before not correct , the gauge works (speedometer , fuel , temp...) but the gear indicator in the center (screen) not works at all .

please , the codes mean something about my trany problem ?

Thank you very much !



https://cimg0.ibsrv.net/gimg/www.gmf...4fd039f97.jpeg

P0753 = 1-2 shift solenoid electrical issue, P1860 = TCC PWM solenoid electrical issue, P1846 = TCC Solenoid electrical issue, P1886 = 3-2 shift solenoid electrical issue. Check the trans fuse in the Instrument panel fuse block. Check if there is battery power on the E terminal at the transmission connector (pink wire). Use a light with a bulb in it not an LED, this will put more of a load on the circuit. Possible ignition switch issue. A bad switch could also cause other electrical problems. With the information you provided I think this would be a place to start. Hope you find this helpful.

I just seen a couple references on google where 1995-1999 GM trucks had issues with the ignition switch,(not the lock) causing electrical issues INCLUDING transmission electrical faults.