Hummer H3. Manual — part 506

Fig. 60: EVAP Canister Purge Tube
Courtesy of GENERAL MOTORS CORP.

21. Disconnect the EVAP canister purge tube (1) quick connect fitting from the EVAP canister

purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .

22. Disconnect the fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal

Collar Quick Connect Fitting Service .

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 61: Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Courtesy of GENERAL MOTORS CORP.

23. Remove the positive crankcase ventilation (PCV) hose from the intake manifold fitting.

24. Position the hose out of the way.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 62: Intake Manifold Bolts
Courtesy of GENERAL MOTORS CORP.

25. Loosen the intake manifold bolts (512).

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

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

26. Remove the intake manifold (500).

27. Cover the cylinder head passages in order to prevent dirt or debris from entering the

passages.

Fig. 63: View Of Intake Manifold-To-Cylinder Head Gasket
Courtesy of GENERAL MOTORS CORP.

28. Remove and discard the intake manifold gaskets (514).

harness up out of the way so the upper intake manifold cover
does not get caught against the engine harness.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3