Hummer H3. Manual — part 510

Fig. 76: Upper Intake Manifold Cover Nut
Courtesy of GENERAL MOTORS CORP.

16. Install the upper intake manifold cover.

17. Install the upper intake manifold cover nut until snug

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 77: Vacuum Brake Booster Hose
Courtesy of GENERAL MOTORS CORP.

18. Install the brake booster vacuum hose to the intake manifold nipple.

19. Position the brake booster vacuum hose clamp at the intake manifold.

20. Secure the brake booster vacuum hose to the intake manifold.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 78: View Of Intake Manifold-To-Cylinder Head Gasket
Courtesy of GENERAL MOTORS CORP.

21. Install NEW intake manifold gaskets (514) to the intake manifold.

22. Remove the covers from the cylinder head passages.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 79: Intake Manifold Bolts
Courtesy of GENERAL MOTORS CORP.

23. Install the intake manifold (500).

IMPORTANT: The aid of an assistant may be helpful in holding the engine

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3