Hummer H3. Manual — part 443

Fig. 595: View Of Engine Block Coolant Plug
Courtesy of GENERAL MOTORS CORP.

1. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the plug threads.

2. Install the engine block coolant plug.

Tighten: Tighten the engine block coolant plug to 50 N.m (37 lb ft).

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 596: View Of Front Engine Block Oil Gallery Plug
Courtesy of GENERAL MOTORS CORP.

3. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the plug threads.

4. Install the engine block oil gallery plugs to front and left of block.

Tighten:

Tighten the side engine block oil gallery plugs to 35 N.m (26 lb ft).

Tighten the front (1) engine block oil gallery plug to 80 N.m (40 lb ft).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 597: View Of EVAP Solenoid
Courtesy of GENERAL MOTORS CORP.

5. Add sealer GM P/N 12346004 (Canadian P/N 10953480) to the EVAP solenoid bolt

threads.

Tighten: Tighten the EVAP solenoid bolt to 10 N.m (89 lb in).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 598: View Of Knock Sensor
Courtesy of GENERAL MOTORS CORP.

6. Install the knock sensor.

Tighten: Tighten the knock sensor to 25 N.m (18 lb ft).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3