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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 951 (Wiring Systems - Introduction) >> Repair Instructions >> Underhood Electrical Center or Junction Block Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  2. Remove the left fender upper brace.
    3. Fig 1: Removing Left Fender Upper Brace
    GM400853Courtesy of GENERAL MOTORS CORP.
  3. Remove the electrical center brace cover assemble by lifting the cover (3) outwards to clear the tabs.
    4. Fig 2: Removing Electrical Center Brace Cover Assembly
    GM749941Courtesy of GENERAL MOTORS CORP.
  4. Remove all fuses and relays.
  5. Push on the tab (3) so that the electrical center can be rotated on the studs located at (2).
  6. Remove all connectors by removing the bolt (1) for each connector.
    7. Fig 3: Removing Electrical Center Connectors
    GM749942Courtesy of GENERAL MOTORS CORP.
  7. Disconnect all connectors from the electrical center block.
  8. Push on the tabs (2) in order to lift the electrical center (1) out of the housing.
    9. Fig 4: Removing Electrical Center From Housing
    GM749945Courtesy of GENERAL MOTORS CORP.
  9. To replace the engine electrical center bracket remove the 4 retaining bolts (1).
    10. Fig 5: Electrical Center Bracket Retaining Bolts
    GM747706Courtesy of GENERAL MOTORS CORP.
  10. Remove the engine electrical center bracket assembly from the fender.
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