Hummer H3. Manual — part 746

7. Connect the electrical connector (3) to the switch (4).

Fig. 57: View Of Transmission Control Lever
Courtesy of GENERAL MOTORS CORP.

8. Install the transmission control lever to the manual shaft with the nut.

Tighten: Tighten the control lever nut to 20 N.m (15 lb ft).

9. Lower the vehicle.

2007 Hummer H3

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

10. Adjust the automatic transmission range selector cable. Refer to Range Selector Lever

Cable Adjustment.

11. Check the switch for proper operation. The engine must start in the P (PARK) or N

(NEUTRAL) positions only. If proper operation of the switch can not be obtained, replace
the switch.

PARK/NEUTRAL BACKUP SWITCH ADJUSTMENT

1. Place the transmission range selector in the N (NEUTRAL) position.

2. With an assistant in the drivers seat, raise and support the vehicle. Refer to Lifting and

Jacking the Vehicle .

3. Loosen the park/neutral position switch mounting bolts.

4. With the vehicle in the N (NEUTRAL) position, rotate the switch while the assistant

attempts to start the engine.

5. Following a successful start, turn the engine OFF.

6. Tighten the bolts securing the park/neutral back up switch to the transmission.

Tighten: Tighten the park/neutral back up switch bolts to 27 N.m (20 lb ft).

7. Lower the vehicle.

8. Check the switch for proper operation. The engine must start in the P (PARK) or N

(NEUTRAL) positions only.

9. Replace the park/neutral position switch if proper operation can not be achieved. Refer to

Park/Neutral Backup Switch Replacement.

IMPORTANT:

The following procedure is for vehicles that have not had the
switch removed or replaced. If the switch has been removed
or replaced, refer to Park/Neutral Backup Switch
Replacement for the proper adjustment procedure.

Apply the parking brake.

The engine must start in the P (PARK) or N (NEUTRAL)
positions only.

Check the switch for proper operation. If adjustment is
required, proceed as follows:

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

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

AUTOMATIC TRANSMISSION FLUID AND FILTER REPLACEMENT

Removal Procedure

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

Fig. 58: View Of Range Selector Cable & Components
Courtesy of GENERAL MOTORS CORP.

2. Complete the following in order to disconnect the range selector cable (3) from the

IMPORTANT: Do not pull on the boot portion of the cable.

2007 Hummer H3

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

transmission range selector lever ball stud:

1. Insert a flat-bladed tool between the range selector cable end (5) and the range

selector lever (1).

2. Pry the range selector cable end (5) away from the range selector lever (1).

Fig. 59: View Of Transmission Range Selector Cable Bracket
Courtesy of GENERAL MOTORS CORP.

3. Remove the bolts securing the transmission range selector cable bracket to the transmission.

4. Position the transmission range selector cable bracket aside for clearance while lowering the

pan.

2007 Hummer H3

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