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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 685 (Front Drive Axle) >> Diagnostic Information and Procedures >> Four-Wheel Drive Does Not Disengage

Four-Wheel Drive Does Not Disengage

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

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

Step Action Yes No
1 Confirm operation of system. Refer to Front Drive Axle Description and Operation .
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 .
While turning the right wheel, does the left wheel turn in the opposite direction?		 Go to Step 3  Test the system
3
  1. Remove the inner axle shaft and housing assembly. Refer to Front Drive Axle 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
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