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