2004 GMC Envoy XUV SLT 4.2L Rear End Locks Up In Auto 4wd / 4wd Only
The rear end locks up when driving straight only in 4wd or auto 4wd and releases when turning corners. Code scan found several present BO780, BO790, B2795, C0321, C0359, C0374. I found Dex VI for fluid in the T-Case and changed it out with the Auto Trak II but...
Summary posted 8/21/2014
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Vehicle Data2004 GMC Envoy XUV SLT
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Message Closed w/Summary
Vehicle Data
2004 GMC Envoy XUV SLT
VIN | 1GKET12S44 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | Rear End Locks Up in Auto 4WD / 4WD Only |
Conditions | Locking Up |