Chevrolet Silverado / GMC Sierra. Manual

Fig. 321: View Of Coolant Air Bleed Pipe Seal
Courtesy of GENERAL MOTORS CORP.

5. Remove the seals (308) from the pipe and covers.

6. Discard the seals.

ENGINE BLOCK VALLEY COVER REMOVAL

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 322: View Of Engine Valley Cover & Gasket
Courtesy of GENERAL MOTORS CORP.

1. Remove the valley cover bolts (506).

2. Remove the valley cover (555) and gasket (556).

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

3. Remove the O-ring seals (537) from the cover.

Fig. 323: Identifying Oil Pressure Sensor & Washer
Courtesy of GENERAL MOTORS CORP.

4. Remove the oil pressure sensor (706) and washer (707), as required.

VALVE ROCKER ARM COVER REMOVAL - LEFT SIDE

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 324: Ignition Coils & Bracket
Courtesy of GENERAL MOTORS CORP.

1. Remove the spark plug wires (724).

2. Remove the ignition coil bracket studs (720).

3. Remove the ignition coil and bracket assembly (719).

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Chevrolet Silverado / GMC Sierra. Manual - part 325