Hummer H3. Manual — part 1660

(Canadian P/N 88861801), to the transfer case via the speed sensor hole.

13. Install the speed sensor to the top of the transfer case and connect the electrical connector.

Tighten: Tighten the speed sensor to 17 N.m (13 lb ft).

14. Lower the vehicle.

TRANSFER CASE MOTOR/ENCODER REPLACEMENT

Fig. 16: Transfer Case Motor/Encoder Replacement
Courtesy of GENERAL MOTORS CORP.

Transfer Case Motor/Encoder Replacement

NOTE:

Refer to Component Fastener Tightening Notice .

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

TRANSFER CASE SPEED SENSOR REPLACEMENT

Fig. 17: Transfer Case Speed Sensor Replacement
Courtesy of GENERAL MOTORS CORP.

Preliminary Procedures

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

2. Remove the transfer case shield. Refer to Transfer Case Shield Replacement.

1

Encoder Motor Electrical Connector

2

Mounting Encoder Motor Bolt (Qty: 3)

Tighten: 10 N.m (89 lb in)

3

Encoder Motor Mounting Bracket Bolt

Tighten: 10 N.m (89 lb in)

4

Encoder Assembly Motor

5

Encoder Motor Bracket Nut

Tighten: 5 N.m (44 lb in)

6

Encoder Motor Bracket

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Transfer Case Speed Sensor Replacement

TRANSFER CASE OUTPUT SHAFT SEAL REPLACEMENT - FRONT

Fig. 18: Transfer Case Output Shaft Seal Replacement - Front
Courtesy of GENERAL MOTORS CORP.

Transfer Case Output Shaft Seal Replacement - Front

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening
Specifications.Preliminary Procedure: Remove the transfer case shield. Refer to
Transfer Case Shield Replacement.

NOTE:

Refer to Fastener Notice .

1

Sensor, Speed
Tip: Disconnect the electrical connector.

Tighten: 17 N.m (13 lb ft)

Callout

Component Name

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

TRANSFER CASE OUTPUT SHAFT SEAL REPLACEMENT - REAR

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications.

Preliminary Procedure

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

2. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .

Tools Required

J 8614-01 Flange and Pulley Holding Tool

J 42738 Front Output Shaft Seal Installer. See Special Tools.

NOTE:

Refer to Fastener Notice .

1

Nut, Drive Flange Retaining (Qty: 1)
Tip: Using the J 8614-01 , remove the retaining nut.

Tighten: 319 N.m (235 lb ft)

2

Washer, Drive Flange (Qty: 1)

3

Seal, Drive Flange Washer (Qty: 1)

4

Flange, Drive Flange

5

Seal, Front Output Shaft
Tip:

1. Using the appropriate tool, remove the seal.

2. Using the J 42738 , install the Front Output Shaft Seal Installer. See

Special Tools.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3