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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1614 (Transfer Case - NVG 246-NP8 (Two Speed Automatic)) >> Repair Instructions >> Transfer Case Encoder Motor Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • 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.
  • A NEW encoder motor does NOT come with locating pins.
  1. Install the locating pins to the NEW encoder motor.
  2. Position a NEW actuator insulator gasket to the transfer case.
  3. Install the encoder motor.
    Fig 1: Encoder Motor & Bolts
    G01481134Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  4. Install encoder motor bolts.

    Tighten 

    Tighten the bolts, in the sequence shown, to 20 N.m (15 lb ft).

  5. Connect the encoder motor electrical connector (7).
  6. Connect the transfer case switch electrical connector (2).
  7. Install the front propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT-FRONT  .
  8. Install the transfer case shield. Refer to Transfer Case Shield Replacement .
Fig 2: Transfer Case Switch & Encoder Motor Electrical Connectors
G01481135Courtesy of GENERAL MOTORS CORP.
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