[edford]

Originally Posted by denisond3

Make sure the rod going into the transmission at its top front is actually rotating back & forth when someone moves the shift lever through the gears. Also check that the cable running from the throttle body down to the transmission is still connected and moving, and has some tension on the cable. It wont be much, but if that cable has snapped, it may not use enough oil pressure to cause the clutch packs to 'lock up'.
Then, with the engine running and the shift lever in "L" for first gear, check whether either one of the axles is turning. Its rare but possible for a CV joint to break apart inside - but you would be able to see one/both of the inner CV joints turning. You would have to be able to crawl underneath the front of the car to check this out.
If you went off road and shook up the car, you might check that the connector on the front of the tranny (halfway down the front side) is still snugly connected to the white goody on the transmission. Thats where the wiring to control the shifting solenoids is connected. I think you would have to remove the aif filter housing to reach the thing.
While its probably possible for the valve body to hang up suddenly, I have never heard where a replacement or rebuilt valve body was the soltuioni.
The transmission (F4EAT) in my 92 went from working 'normally' one moment, to not being able to move the car forward from a stop sign a few seconds later. I dont know if it had been slipping prior to that or shifting funny, since my sister-in-law was driving it and she doesnt pay any attention to such stuff. In that case the transmission would only turn the front wheels if they were raised off the ground; at least I was able to tell that it wasnt the VSS (vehicle speed sensor) on the back of the tranny that had gone bad, since the transmission would shift into higher gears). I think with a bad VSS the tranny wont work. Anyway I removed and rebuilt the transmission - found the clutch packs were pretty well worn down inside.
If thats the problem yours has, there is one thing you can try that is lots easier than transmission rebuilding. There is an update to the relief valve for the transmission oil pump, and you can install it with the tranny in the car, in about 20 minutes. Here is its name:
ATRATB039 02/01/1991 A/T - G4A-EL/4EAT Low Pump Pressure. I would think any transmission 'hard parts' outlet would have the kit for sale. Its about $30 I think. I google searched to find a 'hard parts' store, and ordered my tranny parts from them online.

I really doubt its the torque converter, but if you have to get the tranny rebuilt, get a rebuilt torque converter too.

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