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Fig. 75: View Of Main Coil Harness & Fuel Injector Electrical Connectors (Left 1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement (6.0L (LQ4)). 2. Remove the connector position assurance (CPA) lock. 3. Disconnect the main electrical connector (2) feeding the ignition coils. 4. Remove the harness clips (1). 5. Reposition the engine harness. 6. Remove the spark plug wires from the ignition coils. Twist each plug wire 1/2 turn. Pull only on the boot in order to remove the wire from the ignition coil.
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 76: View Of Ignition Coil, Bracket Assembly, Wire Harness & Bolts (Left) 7. Remove the ignition coil bracket studs from the rocker arm cover. 8. Remove the ignition coils and bracket from the rocker arm cover. 9. Remove the valve rocker arm cover bolts. 10. Remove the valve rocker arm cover.
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 77: Rocker Arm Cover Gasket 11. Remove the gasket (1) from the rocker cover. 12. Discard the OLD gasket. 13. Clean and inspect the rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection. Installation Procedure IMPORTANT: All gasket surfaces should be free of oil an/or other foreign
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 78: Rocker Arm Cover Gasket 1. Install a NEW rocker cover gasket (1) into the valve rocker cover lip. material during assembly. DO NOT reuse the valve rocker arm cover gasket. The valve rocker arm cover bolt grommets may be reused. If the PCV valve grommet has been removed from the rocker
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
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