Hummer H3. Manual — part 462

1. Tighten the new crankshaft balancer bolt while holding the back to 150 N.m (110 lb

ft).

2. Use J 45059 to tighten the crankshaft balancer bolt an additional 180 degrees. See

Special Tools.

FUEL RAIL AND INJECTORS INSTALLATION

Fig. 664: Identifying Fuel Injector Rail Bolts
Courtesy of GENERAL MOTORS CORP.

1. Lubricate the lower injector O-rings with mineral oil GM P/N 9981704.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

2. Install the fuel injector rail.

3. Install the fuel injector rail bolts.

Tighten: Tighten the fuel injector rail bolts to 10 N.m (89 lb in).

INTAKE MANIFOLD INSTALLATION

Fig. 665: Identifying Intake Manifold And Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install a new intake manifold gasket.

NOTE:

Refer to FASTENER NOTICE .

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

2. Install the intake manifold and bolts.

Tighten: Tighten the intake manifold bolts from the inside out to 10 N.m (89 lb in).

Fig. 666: Identifying Throttle Control Module Bolts
Courtesy of GENERAL MOTORS CORP.

3. Install a new throttle control module gasket.

4. Install the throttle control module.

5. Add threadlock GM P/N 12346004 (Canadian P/N 10953480) to the throttle control

module bolt threads.

6. Install the throttle control module bolts.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Tighten: Tighten the throttle control module bolts to 10 N.m (89 lb in).

ENGINE COOLANT THERMOSTAT HOUSING INSTALLATION

Fig. 667: View Of Thermostat Housing
Courtesy of GENERAL MOTORS CORP.

1. Install the thermostat housing.

2. Install the thermostat housing bolts.

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3