Transmision will not shift the codes are co327 and co236

too many codes there you need to wipe the codes and see what pops up after the wipe. would think some of them are old codes.

the solinoid stays open,might be stuck,or cloged,have the transmision flushed and replace the hydrolick filter inside the transmision

co327 is a code for your transfer case encoder motor and the U codes are communication codes. Most likely cause is the encoder motor needs replacement

sounds more like a tranny speed sensor if not shifting

It can if the misfire is bad enough. 300 tells you that you have a random misfire, 305 tells you misfire on cylinder 5, and 306 misfire on cylinder 6. Correct these and your vehicle should improve, however I would check the codes once again after this issue is corrected to determine if another DTC code was missed.

1991 ,with an auto box thats not working?? ,do you have a local scrapyard

Codes indicate rear wheel speed sensor fault, this part of ABS system. A mechanic will need to inspect sensors.

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

Transmision feels like righter bans are slipping??

I found the same problem with mine after taking it to the dealer ship for a factory recall. It was shifting good but when they finish the recalls it won't shift at all. After auguring with them they finally put the code reader on it and found they lost the values of the transmission to shift. The machanic reset it and it's now back to normal.