Chevrolet Silverado / GMC Sierra. Service manual — part 260

Fig. 89: View Of Valve Rocker Arm Cover & Bolts (Right)
Courtesy of GENERAL MOTORS CORP.

5. Install the valve rocker arm cover onto the cylinder head.

6. Install new rocker arm cover grommets, if necessary.

7. Install the rocker arm cover bolts and grommets.

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Tighten: Tighten the bolts to 12 N.m (106 lb in).

8. Install the PCV fresh air hose.

Fig. 90: Ignition Coils And Bracket
Courtesy of GENERAL MOTORS CORP.

9. Apply threadlock to the threads of the bracket bolts. Refer to Sealers, Adhesives, and

Lubricants for the correct part number.

10. Install the ignition coils and bracket to the rocker arm cover.

11. Install the ignition coil bracket studs to the rocker cover.

Tighten: Tighten the studs to 12 N.m (106 lb in).

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 91: View Of Heater Hose Bracket Nut
Courtesy of GENERAL MOTORS CORP.

12. Install the heater hose bracket and nut.

Tighten: Tighten the nut to 9 N.m (80 lb in).

13. Position the surge tank/heater hoses to the heater hose bracket.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 92: Identifying Right Side Main Electrical Connectors
Courtesy of GENERAL MOTORS CORP.

14. Install the spark plug wires to the ignition coils.

15. Re-position the engine harness.

16. Install the harness clips (1).

17. Connect the main electrical connector (4) feeding the ignition coils.

18. Install the CPA lock (5).

19. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield

Replacement (6.0L (LQ4)).

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2