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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1026 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Glow Plug Control Module Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Positive Battery Cable & Glow Plug Control Module Electrical Connector
    GM1873210Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (w/Single Battery) or Battery Negative Cable Disconnection and Connection (w/Auxiliary Battery) or Battery Negative Cable Disconnection and Connection (w/Dual Batteries) .
  2. Disconnect the positive battery cable (1) from the glow plug control module.
  3. Disconnect the engine wiring harness electrical connector (2) from the glow plug control module.
    4. Fig 2: View Of Glow Plug Control Module & Bolts
    GM1873211Courtesy of GENERAL MOTORS CORP.
  4. Remove the glow plug control module bolts and module.
    5. Fig 3: View Of Fuel Return Pipe Clamp Bolt & Clip Bolt
    GM1872344Courtesy of GENERAL MOTORS CORP.
  5. Remove the fuel return pipe clamp bolt (1).
    6. Fig 4: View Of Glow Plug Control Module Protector & Glow Plug Control Module Bracket
    GM1873212Courtesy of GENERAL MOTORS CORP.
  6. Remove the glow plug control module protector bolts and protector (1), if required.
  7. Remove the glow plug control module bracket and bolts (2), if required.
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