Chevrolet Silverado / GMC Sierra. Manual - part 258
Twist each plug wire 1/2 turn.
Pull only on the boot in order to remove the wire from the ignition coil.
Fig. 82: View Of Heater Hose Bracket Nut
Courtesy of GENERAL MOTORS CORP.
7. Reposition the surge tank/heater hoses from the heater hose bracket.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
8. Remove the heater hose bracket nut and bracket.
Fig. 83: Ignition Coils And Bracket
Courtesy of GENERAL MOTORS CORP.
9. Remove the ignition coil bracket studs from the rocker arm cover.
10. Remove the ignition coils and bracket from the rocker cover.
11. Remove the positive crankcase ventilation (PCV) fresh air hose.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 84: View Of Valve Rocker Arm Cover & Bolts (Right)
Courtesy of GENERAL MOTORS CORP.
12. Remove the valve rocker arm cover bolts.
13. Remove the valve rocker arm cover.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
