Chevy Astro and GMC Safari Forum banner

AWD problem (discouraged)

1421 Views 25 Replies 10 Participants Last post by  snobird60

I have had a problem with my 4wd for about 2 years. It started when I changed my encoder motor to a brand new one (dorman). My rear tires began to spin when I was turning (left or right). My mechanic told me that it showed that it was working now. and not before. There was something that wouldn't disengage and my differential was forcing. Last week, I changed the whole transfer case (TNT transfer case rebuilt), I had the rear differential oil changed (everything is fine, nothing broken inside), I had the discs changed , pads and caliper on the 4 wheels as well as the pedal break pads. I also changed the 2 CV joints. All brand new. Unfortunately, randomly, it may still have the same problem! Sometimes, it went back to doing the same thing. I turn left or right and he steers. I press on the accelerator pedal and I feel strain. The rear wheels spin. I do not know what to do. Most of the time, it works correctly, but with 4500$ spent, i want my problem to be fixed for good. Could it be a sensor abs problem? We read a code on the right front wheel yesterday.

thanks a lot.

Icône de traduction vérifiée par la communauté
See less See more
1 - 1 of 26 Posts
Also, the speed sensors are the abs sensor too?
No, they have zero to do with each other. The front wheel speed sensors have nothing to do with the AWD. There are two prop speed sensors that the TCCM looks at to determine slip for the AWD.

What happens if you completely remove the encoder motor and drive around, does it change your issue?

It helps if you put your year/make/model/engine/AWD/conversion/etc in your profile or signature line so we know what we are working with now and in the future. So much easier than having to go search for it.
1 - 1 of 26 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.