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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1025 (Engine Controls And Fuel - 4.3L - Introduction (2 Of 2)) >> Repair Instructions >> Ignition Coil Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Feed Pipe
    GM1876017Courtesy of GENERAL MOTORS CORP.
  1. Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .
  2. Disconnect the chassis fuel feed pipe (1) quick connect fitting from the engine fuel feed pipe. Refer to Metal Collar Quick Connect Fitting Service .
    3. Fig 2: View Of Engine Wiring Harness & Components
    GM1876492Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the engine wiring harness electrical connector from the manifold absolute pressure (MAP) sensor.
  4. Disconnect the engine wiring harness electrical connector (1) from the evaporative emission (EVAP) canister purge solenoid valve.
    5. Fig 3: View Of Engine Wiring Harness Electrical Connector, (CPA) Retainer & Fuel Meter Body
    GM1876869Courtesy of GENERAL MOTORS CORP.
  5. Remove the engine wiring harness connector position assurance (CPA) retainer at the fuel meter body.
  6. Disconnect the engine wiring harness electrical connector (1) from the fuel meter body.
    7. Fig 4: View Of Engine Wiring Harness Clips
    GM1876870Courtesy of GENERAL MOTORS CORP.
  7. Remove the engine wiring harness clips (1, 2) from the engine harness brackets.
    8. Fig 5: View Of Engine Wiring Harness Rear Bracket & Bolts
    GM1876871Courtesy of GENERAL MOTORS CORP.
  8. Remove the engine wiring harness rear bracket bolts and bracket.
    9. Fig 6: View Of Spark Plug Wires
    GM1876875Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Note the routing of the spark plug wires prior to disconnecting the wires from the ignition coil.
  9. Disconnect the spark plug wires (1, 2) from the ignition coil.
  10. Reposition the spark plug wires out of the way.
    11. Fig 7: View Of Engine Wiring Harness Electrical Connector
    GM1876873Courtesy of GENERAL MOTORS CORP.
  11. Disconnect engine wiring harness electrical connector (7) from the ignition coil.
  12. Reposition the engine wiring harness branches out of the way as required.
    13. Fig 8: View Of Ignition Coil & Bolts
    GM1876876Courtesy of GENERAL MOTORS CORP.
  13. Remove the ignition coil bolts and coil from the bracket.
    14. Fig 9: View Of Ignition Coil Bracket & Bolts
    GM1876878Courtesy of GENERAL MOTORS CORP.
  14. If required, remove the ignition coil bracket bolts and bracket.
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