Hummer H3. Manual — part 755

2. Connect the transmission vent hose retainer (1, 6) to the following:

The heater pipe bracket (2)

The transmission range selector cable bracket (5)

3. Lower the vehicle.

2-4 SERVO

Tools Required

J 29714-A Servo Cover Depressor. See Special Tools.

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Remove the front propeller shaft (4WD only). Refer to Front Propeller Shaft

Replacement .

3. Clean away all dirt and debris from the 2-4 servo cover area.

4. Remove a single transmission oil pan bolt.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 89: Compressing The Servo Cover Using J 29714-A
Courtesy of GENERAL MOTORS CORP.

5. Install the J 29714-A in place of the transmission oil pan bolt. See Special Tools.

6. Tighten the bolt in order to compress the servo cover.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 90: Removing The Servo Cover Ring
Courtesy of GENERAL MOTORS CORP.

7. Remove the servo cover retaining ring.

8. Remove the J 29714-A . See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 91: Removing The Servo Cover And O-Ring Seal
Courtesy of GENERAL MOTORS CORP.

9. Remove the servo cover and the O-ring seal. If the cover is hung up on the seal, use a pick

(2) to pull and stretch the seal (1) out of the groove. Cut and remove the O-ring seal before
removing the cover.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3