05 Envoy Denali (5.3 V8) having 4wd issues
I don't have 4wd engaging.
I've read this VERY helpful thread...and I still have some questions.
I can hear the encoder motor on the t case...but it makes the same whirring sound twice. then clicks and stops.
I can't hear anything from the front...so I'm guessing the axle disconnect needs some work.
But here's the rub...the light never moves off of 4hi. and It's clearly still in 2wd. so I'm guessing the encoder isn't sensing any movement...or the whole t case motor is bad?
In any case...with the driver front wheel in the air, I turn the wheel and the front driveshaft spins. All 3 other wheels are on the ground.
So...since the front driveshaft spins that would need to mean either
A. the T case isn't really in 4wd.
B. the T case IS in 4wd and the clutches are worn out and slipping...hence why the driveshaft can spin.
Would the axle disconnect cause the issues with the front driveshaft?
I don't have 4wd engaging.
I've read this VERY helpful thread...and I still have some questions.
4WD not working? Step inside.
There seems to be quite a lot of mystery to newer folks when their 4x4 functions stop working. Since crappy weather season is upon us a lot of people are trying their 4WD functions for the first time this year... and discovering all isn't as it should be. Here's my attempt at a troubleshooting...
gmtnation.com
I can hear the encoder motor on the t case...but it makes the same whirring sound twice. then clicks and stops.
I can't hear anything from the front...so I'm guessing the axle disconnect needs some work.
But here's the rub...the light never moves off of 4hi. and It's clearly still in 2wd. so I'm guessing the encoder isn't sensing any movement...or the whole t case motor is bad?
In any case...with the driver front wheel in the air, I turn the wheel and the front driveshaft spins. All 3 other wheels are on the ground.
So...since the front driveshaft spins that would need to mean either
A. the T case isn't really in 4wd.
B. the T case IS in 4wd and the clutches are worn out and slipping...hence why the driveshaft can spin.
Would the axle disconnect cause the issues with the front driveshaft?