LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 372 (Front Drive Axle) >> Diagnostic Information and Procedures >> Four-Wheel Drive Does Not Disengage

Four-Wheel Drive Does Not Disengage

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:

Before performing the following diagnostic procedure, ensure that all electrical diagnostic procedures have been performed and there are no DTCs.

Four-Wheel Drive Does Not Disengage

Step Action Yes No
1 Confirm operation of system. Refer to Symptoms - Front Drive Axle .
Is the system operating properly?		 Test the system Go to Step 2 
2
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the actuator motor. Refer to Front Drive Axle Actuator Replacement .
  3. Using a brass drift, apply pressure to the clutch fork.
  4. Turn the right wheel to align the clutch gears.
While turning the right wheel, does the left wheel turn in the opposite direction?		 Test the system Go to Step 3 
3
  1. Remove the inner axle shaft and housing assembly. Refer to Front Drive Axle Inner Shaft and Inner Shaft Housing Replacement .
  2. Inspect the following:
    • Clutch Fork
    • Clutch Sleeve
    • Clutch Gear
    • Clutch Return Spring

      Repair as needed.

Did you complete the repair?		 Test the system System OK
scientia non olet · About LEMON Manuals