Hummer H2. Manual — part 2638

Fig. 79: Removing Servo "O" Ring
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 80: Inspecting Servo Components For Damage
Courtesy of GENERAL MOTORS CORP.

Installation

1. Install NEW seals onto the servo pistons and the servo cover.

2. Install the 2-4 servo. See Fig. 80 .

3. Install the servo cover depressor.

4. Tighten the bolt on servo cover depressor in order to compress the servo cover. See Fig. 77 .

5. Install the servo cover ring.

6. Remove the servo cover depressor.

7. Install the transmission oil pan bolt. Tighten the bolt to specification. See TORQUE

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

SPECIFICATIONS .

8. Install the heat shield and bolts. See Fig. 38 . Tighten the bolts to specification. See TORQUE

SPECIFICATIONS .

9. Install right catalytic converter and nuts. Tighten nuts to specification. See TORQUE

SPECIFICATIONS .

10. Install exhaust manifold pipe-to-catalytic converter nuts. Tighten nuts to specification. See TORQUE

SPECIFICATIONS .

11. Connect oxygen sensor electrical connectors (1, 2). See Fig. 37 . Connect the CPA retainers.

12. Install the catalytic converter guard. Tighten bolts to specification. See TORQUE SPECIFICATIONS .

Install frame-to-engine protection shield. Tighten bolts to specification. See TORQUE
SPECIFICATIONS .

13. Fill transmission to proper level with appropriate fluid. See LUBRICATION .

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Application

Ft. Lbs. (N.m)

Auxiliary Oil Cooler Support Bolt

12 (16)

Catalytic Converter Guard Bolts

22 (30)

Catalytic Converter Nuts

37 (50)

Engine Protection Shield Bolts

22 (30)

Exhaust Manifold Pipe-To-Catalytic Converter Nuts

37 (50)

Extension Housing Bolts

33 (45)

Heat Shield Bolts

13 (18)

Insulator Nuts

12 (16)

Oil Pan Bolts

12 (16)

Oil Pan Drain Plug

13 (18)

Oxygen Sensor

31 (42)

Park Lock Bracket Bolt

18 (24)

Park/Neutral Position Switch Bolt

18 (24)

Reverse Servo Cover Bolt

18 (24)

Right Exhaust Pipe Nuts

37 (50)

Shift Cable Bracket Bolts

18 (24)

Transmission Control Lever Nut

18 (24)

Transmission Crossmember Bolts & Nuts

70 (95)

Transmission Heat Shield Bolts

13 (18)

Transmission Fluid Cooler Hose Insulator

12 (16)

Transmission Oil Level Indicator Tube Nut

13 (18)

Transmission Mount Bolts

44 (60)

Transmission Mount Nut

30 (40)

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

INCH Lbs. (N.m)

Accumulator-To-Case Bolt

97 (11)

Center Console Bolts

80 (9)

Center Console End Panel Screws

14 (1.6)

Center Console Storage Bin Screws

18 (2)

Control Valve Body Bolts

97 (11)

Filler Tube Bolt

53 (6)

Fluid Pressure Switch

97 (11)

Manual Detent Spring Bolt

97 (11)

Oil Pass Cover Bolt

97 (11)

Pressure Control Solenoid Bolt

97 (11)

Shift Cable Brace Bolt

89 (10)

Shift Handle Set Screw

18 (2)

TCC Solenoid Bolts

97 (11)

Transmission Fluid Indicator Stop Bolt

97 (11)

Valve Body-To-Case Bolt

(1)

97 (11)

Vent Tube Clamp

89 (10)

VSS Bolt

97 (11)

(1)

Tighten valve body bolts in a spiral pattern starting in center of valve body.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2