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    Avalanche, Sierra, Silverado, C&K Series, 1999-2005

    Encoder Motor

    Print

    Removal & Installation



    1. Remove the transfer case shield.
    2.  
    3. Remove the front propeller shaft.
    4.  
    5. Disconnect the transfer case switch electrical connector.
    6.  
    7. Disconnect the encoder motor electrical connector.
    8.  
    9. Remove the encoder motor bolts.
    10.  
    11. Remove the encoder motor.
    12.  
    13. Remove the actuator insulator gasket.
    14.  
    15. If replacing the encoder motor, remove the locating pins from the old motor.
    16.  

    To install:


    NOTE
    If the encoder motor is being replaced because it is defective, ensure that the transfer case is in the neutral position. Manually shift the transfer case at the shift shaft, using a crescent wrench if necessary. When installing the encoder motor, ensure that the encoder motor is indexed correctly and the motor is flat against the transfer case before tightening the bolts.

    1. Install the locating pins to the new encoder motor.
    2.  
    3. Position a new actuator insulator gasket to the transfer case.
    4.  
    5. Install the encoder motor.
    6.  
    7. Install encoder motor bolts and tighten in sequence to 15 ft. lbs. (20 Nm).

      Click image to see an enlarged view

      Fig. Encoder motor tightening sequence

    8.  
    9. Connect the encoder motor electrical connector.
    10.  
    11. Connect the transfer case switch electrical connector.
    12.  
    13. Install the front propeller shaft.
    14.  
    15. Install the transfer case shield.
    16.  

    1. Remove the transfer case shield.
    2.  
    3. Remove the front driveshaft.
    4.  
    5. Disconnect the transfer case switch electrical connector.
    6.  
    7. Disconnect the encoder motor electrical connector.
    8.  
    9. Remove the encoder motor bolts.
    10.  
    11. Remove the encoder motor.
    12.  
    13. Remove the actuator insulator gasket.
    14.  
    15. If replacing the encoder motor, remove the locating pins from the old motor.
    16.  

    To install:


    NOTE
    If the encoder motor is being replaced because it is defective, ensure that the transfer case is in the neutral position. Manually shift the transfer case at the shift shaft, using a crescent wrench if necessary. When installing the encoder motor, ensure that the encoder motor is indexed correctly and the motor is flat against the transfer case before tightening the bolts.

    1. Install the locating pins to the new encoder motor.
    2.  
    3. Position a new actuator insulator gasket to the transfer case.
    4.  
    5. Install the encoder motor.
    6.  
    7. Install encoder motor bolts and tighten in sequence to 15 ft. lbs. (20 Nm).
    8.  
    9. Connect the encoder motor electrical connector.
    10.  
    11. Connect the transfer case switch electrical connector.
    12.  
    13. Install the front driveshaft.
    14.  
    15. Install the transfer case shield.

      Click image to see an enlarged view

      Fig. Encoder motor tightening sequence

    16.  

    1. Remove the transfer case shield.
    2.  
    3. Remove the front propeller shaft.
    4.  
    5. Disconnect the transfer case switch electrical connector.
    6.  
    7. Disconnect the encoder motor electrical connector.
    8.  
    9. Remove the encoder motor bolts.
    10.  
    11. Remove the encoder motor.
    12.  
    13. Remove the actuator insulator gasket.
    14.  
    15. If replacing the encoder motor, remove the locating pins from the old motor.
    16.  

    To install:


    NOTE
    If the encoder motor is being replaced because it is defective, ensure that the transfer case is in the neutral position. Manually shift the transfer case at the shift shaft, using a crescent wrench if necessary. When installing the encoder motor, ensure that the encoder motor is indexed correctly and the motor is flat against the transfer case before tightening the bolts.

    1. Install the locating pins to the new encoder motor.
    2.  
    3. Position a new actuator insulator gasket to the transfer case.
    4.  
    5. Install the encoder motor.
    6.  
    7. Install encoder motor bolts and tighten in sequence to 15 ft. lbs. (20 Nm).

      Click image to see an enlarged view

      Fig. Encoder motor tightening sequence

    8.  
    9. Connect the encoder motor electrical connector.
    10.  
    11. Connect the transfer case switch electrical connector.
    12.  
    13. Install the front propeller shaft.
    14.  
    15. Install the transfer case shield.
    16.  

    1. Remove the transfer case shield.
    2.  
    3. Remove the front propeller shaft.
    4.  
    5. Disconnect the transfer case switch electrical connector.
    6.  
    7. Disconnect the encoder motor electrical connector.
    8.  
    9. Remove the encoder motor bolts.
    10.  
    11. Remove the encoder motor.
    12.  
    13. Remove the actuator insulator gasket.
    14.  
    15. If replacing the encoder motor, remove the locating pins from the old motor.
    16.  

    To install:


    NOTE
    If the encoder motor is being replaced because it is defective, ensure that the transfer case is in the neutral position. Manually shift the transfer case at the shift shaft, using a crescent wrench if necessary. When installing the encoder motor, ensure that the encoder motor is indexed correctly and the motor is flat against the transfer case before tightening the bolts.

    1. Install the locating pins to the new encoder motor.
    2.  
    3. Position a new actuator insulator gasket to the transfer case.
    4.  
    5. Install the encoder motor.
    6.  
    7. Install encoder motor bolts and tighten in sequence to 15 ft. lbs. (20 Nm).

      Click image to see an enlarged view

      Fig. Encoder motor tightening sequence

    8.  
    9. Connect the encoder motor electrical connector.
    10.  
    11. Connect the transfer case switch electrical connector.
    12.  
    13. Install the front propeller shaft.
    14.  
    15. Install the transfer case shield.
    16.  

     
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