Hi everyone. First post, but I did a little research before starting another AWD thread. Hoping to get some direction/troubleshooting.
I have an 05 Rainier 5.3l with ~140K. Bought it 3 months ago. When I got it it had one newer tire and 3 worn tires. I noticed the AWD would turn on in parking lots and start chunking on me after I purchased the truck. I noticed in the service history that the new tire was on the vehicle for 4k miles before I replaced all the tires. The AWD also worked well for a short time after and no more chunking in tight turns. Now since the snow came I have been messing around off-roading with friends the service AWD light came on and I lost AWD and got stuck. I turn the truck off and the light goes out, but the AWD is not working. The service light comes on only after spinning the rear wheels for an extended time and goes out with each key cycle. It seemed it was intermittently active and now just gone for the past week. I also noticed on 2 occasions the ABS light turned on/off, but that is functioning properly as far as I can tell. I have changed the xcase fluid with autotrak 2 and it was only slightly discolored compared to the new fluid.
I have hptuners, but I can only communicate with the engine/transmission. What things should I check for before stopping by a shop that can read the codes? Any tests I can do myself?
Thanks in advance.
I have an 05 Rainier 5.3l with ~140K. Bought it 3 months ago. When I got it it had one newer tire and 3 worn tires. I noticed the AWD would turn on in parking lots and start chunking on me after I purchased the truck. I noticed in the service history that the new tire was on the vehicle for 4k miles before I replaced all the tires. The AWD also worked well for a short time after and no more chunking in tight turns. Now since the snow came I have been messing around off-roading with friends the service AWD light came on and I lost AWD and got stuck. I turn the truck off and the light goes out, but the AWD is not working. The service light comes on only after spinning the rear wheels for an extended time and goes out with each key cycle. It seemed it was intermittently active and now just gone for the past week. I also noticed on 2 occasions the ABS light turned on/off, but that is functioning properly as far as I can tell. I have changed the xcase fluid with autotrak 2 and it was only slightly discolored compared to the new fluid.
I have hptuners, but I can only communicate with the engine/transmission. What things should I check for before stopping by a shop that can read the codes? Any tests I can do myself?
Thanks in advance.