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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1336 (Power Steering System) >> Repair Instructions >> Power Steering Wiring Harness Extension Harness Replacement (HP2) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. When replacing either harness, lay the replacement harness side by side with the old harness and transfer every alignment mark.
    2. IMPORTANT: Use the new fasteners provided with the power steering wiring harness extension harness kit. Do not re-use any fasteners.
  2. After all alignment marks have been transferred, replace every fastener, installing each one in the correct position with the correct directional orientation.
  3. If the alignment marks are lost or not made before separating the harnesses then the following procedure will need to be followed. Otherwise proceed to Step 11.
    4. Fig 1: Measuring Distance A On Power Steering Wiring Harness & B On Assist Motor Extension Harness
    GM2025707Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Use a paint pen or other suitable marking tool.
    IMPORTANT: Ensure the position and directional orientation of every fastener before securing it.
  4. Measure Distance A on the power steering wiring harness extension harness from the top of the electrical connector and make a mark. Distance A is 11 cm (4.33 in).
  5. Measure Distance B on the power steering assist motor wiring harness from the top of the electrical connector and make a mark. Distance B is 12.5 cm (5 in).
  6. Align the two harnesses by the marks and install the appropriate fastener.
    7. Fig 2: Measuring Distance A On Power Steering Wiring Harness Extension Harness
    GM2025710Courtesy of GENERAL MOTORS CORP.
  7. Measure Distance A on the power steering wiring harness extension harness from the previously installed fastener and make a mark. Distance A is 20.5 cm (8 in).
  8. Pull any slack out of the two harnesses, hold them together at the mark that was made, and install the appropriate fastener.
    9. Fig 3: Measuring Distance A On Power Steering Wiring Harness Extension Harness
    GM2025712Courtesy of GENERAL MOTORS CORP.
  9. Measure Distance A on the power steering wiring harness extension harness from the previously installed fastener and make a mark. Distance A is 20.5 cm (8 in).
  10. Pull any slack out of the two harnesses, hold them together at the mark that was made, and install the appropriate fastener.
  11. Install the power steering assist motor. Refer to Power Steering Assist Motor Replacement .
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