Hummer H3. Manual — part 465

Fig. 675: Installing Exhaust Manifold Bolts
Courtesy of GENERAL MOTORS CORP.

5. Tighten the exhaust manifold bolts.

Tighten:

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

1. Tighten the exhaust manifold bolts a first pass in sequence to 20 N.m (15 lb ft).

2. Tighten the exhaust manifold bolts a second pass in sequence to 20 N.m (15 lb ft).

3. Tighten the exhaust manifold bolts a final pass in sequence to 20 N.m (15 lb ft).

Fig. 676: View Of Exhaust Manifold Studs
Courtesy of GENERAL MOTORS CORP.

6. Install the exhaust manifold heat shield studs (if required).

Tighten: Tighten the exhaust manifold heat shield studs to 10 N.m (89 lb in).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 677: View Of Exhaust Manifold Heat Shield
Courtesy of GENERAL MOTORS CORP.

7. Install the exhaust manifold heat shield.

8. Add anti-seize GM P/N 12371386 (Canadian P/N 993128) to the exhaust manifold heat

shield nuts.

9. Install the exhaust manifold heat shield nuts.

Tighten: Tighten the exhaust manifold heat shield nuts to 10 N.m (89 lb in).

OIL LEVEL INDICATOR AND TUBE INSTALLATION

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 678: View Of Oil Level Indicator & Tube
Courtesy of GENERAL MOTORS CORP.

1. Install the oil level indicator tube.

2. Add sealant GM P/N 12346004 (Canadian P/N 10953480) to the oil level indicator tube

stud threads.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3