Hummer H3. Manual — part 135

1. Apply a 5.5 mm (0.22 in) bead of sealer GM P/N 12378521 (Canadian P/N 88901148) to

the oil pan in the areas marked (1).

2. Apply a 3 mm (0.12 in) bead of sealer GM P/N 12378521 (Canadian P/N 88901148) to the

oil pan in the area marked (2).

Fig. 187: Oil Pan Mounting
Courtesy of GENERAL MOTORS CORP.

the sealer was applied.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

3. Position the oil pan to the engine block.

4. Ensure the oil pan is positioned fully rearward against the transmission mounting surface.

5. Install the oil pan bolts.

Tighten the oil pan bolts.

Tighten:

Tighten the (side) bolts to 25 N.m (18 lb ft).

Tighten the (end) bolts to 10 N.m (89 lb in).

6. Connect the engine wiring harness retainers to the oil pan.

7. Position the power steering gear upward to the frame assembly.

8. Install the power steering gear. Refer to Power Steering Gear Replacement in Power

Steering System.

IMPORTANT: Use care not to allow the sealer to contact the oil pump pipe

and screen assembly.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Fig. 188: View Of Transmission Mounting Bolts
Courtesy of GENERAL MOTORS CORP.

9. Install the 4 lower transmission mounting bolts.

Tighten: Tighten the bolts to 50 N.m (37 lb ft).

10. Install the nuts securing the fuel hose/pipe bracket to the transmission.

Tighten: Tighten the nuts to 20 N.m (15 lb ft).

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

11. Install the service slot plug.

Fig. 189: View Of Mounting Bracket To Frame Bolts
Courtesy of GENERAL MOTORS CORP.

12. Position the differential carrier assembly to the frame.

13. Install the differential carrier assembly bushing to frame bolts.

Tighten: Tighten the bolts to 152 N.m (112 lb ft).

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3