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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 525 (Engine Mechanical - Hybrid (LZ1) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Engine Front Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying CMP Sensor & Connector
    GM1968149Courtesy of GENERAL MOTORS COMPANY
  1. Remove the water pump. Refer to Water Pump Replacement .
  2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
  3. Disconnect the camshaft position sensor wire harness electrical connector (1) from the CMP actuator magnet.
  4. Disconnect the engine harness electrical connector (2) from the CMP sensor wire harness electrical connector.
    5. Fig 2: View Of Oil Pan-To-Front Cover Bolts
    GM832976Courtesy of GENERAL MOTORS COMPANY
  5. Remove the oil pan-to-front cover bolts (1).
    6. Fig 3: View Of Front Cover, Bolts & Gasket
    GM1658162Courtesy of GENERAL MOTORS COMPANY
  6. Remove the front cover bolts (501).
  7. Remove the front cover (502) and gasket (503).
  8. Discard the front cover gasket.
  9. Remove the crankshaft front oil seal.
    10. Fig 4: Identifying Engine Front Cover & Bolts
    GM1968314Courtesy of GENERAL MOTORS COMPANY
  10. If replacing the engine front cover perform the following steps, otherwise proceed to step 10 of the installation procedure.
  11. Remove the CMP sensor wire harness bolts (1).
  12. Disconnect the CMP sensor wire harness from the CMP sensor.
  13. Remove the CMP sensor wire harness (2).
    14. Fig 5: View Of CMP Sensor & O-Ring
    GM1658166Courtesy of GENERAL MOTORS COMPANY
  14. Remove the CMP sensor (703).
    15. Fig 6: View Of CMP Actuator Magnet, Bolts, Gasket & Oil Seal
    GM1658168Courtesy of GENERAL MOTORS COMPANY
  15. Remove the CMP actuator magnet bolts (751), and magnet (752).
  16. Remove and discard the CMP actuator magnet gasket (753).
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