Hummer H3. Manual — part 338

Courtesy of GENERAL MOTORS CORP.

1. Press the NEW oil filter bypass valve into the engine block.

2. Install the oil filter. Refer to Engine Oil and Oil Filter Replacement.

OIL PAN REPLACEMENT

Removal Procedure

1. Remove the oil level indicator and tube. Refer to Oil Level Indicator and Tube

Replacement.

2. Remove the oil pan skid plate. Refer to Oil Pan Skid Plate Replacement .

3. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement.

4. Remove the crossmember. Refer to Crossmember Replacement .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 206: View Of Mounting Bracket To Frame Bolts
Courtesy of GENERAL MOTORS CORP.

5. Remove the differential carrier assembly bushing to frame bolts ONLY.

6. Pull the differential carrier assembly downward.

7. Secure the pinion yoke, in order to prevent the differential carrier from rotating.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 207: View Of Transmission Mounting Bolts
Courtesy of GENERAL MOTORS CORP.

8. Remove the service slot plug.

9. Remove the nuts securing the fuel hose/pipe bracket to the transmission and position aside.

10. Remove 4 lower transmission mounting bolts that are attached to the oil pan.

11. Remove the power steering gear. Refer to Steering Gear Replacement .

12. Pull the power steering gear downward in order to gain access to the oil pan.

13. Disconnect the engine wiring harness retainers from the oil pan.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 208: View Oil Pan & Mounting Bolts
Courtesy of GENERAL MOTORS CORP.

14. Remove the oil pan bolts.

15. Install 2 bolts in the threaded holes at the rear of the oil pan to act as jack screws and tighten

evenly to release the oil pan from the engine block.

16. Remove the oil pan.

17. Remove the 2 bolts from the jack screw holes.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3