Hummer H2. Manual - part 2528

Fig. 86: Identifying Case Fluid Passages 
Courtesy of GENERAL MOTORS CORP. 

2. Using compressed air, blow into all of the case fluid passages (3, 7, 8, 11, 16, 18, 26, 29, 37, 45) to ensure 

that all case fluid passages are clear of any obstruction. 

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

Fig. 87: Inspecting Case Assembly Components For Damage 
Courtesy of GENERAL MOTORS CORP. 

3. Inspect the 2-4 servo bore, the 3rd accumulator retainer and ball assembly (40), the orifice cup plug (11) 

in the servo bore, and the 2nd apply piston pin bore for any of the following conditions: 

z

Porosity  

z

Burrs  

z

Debris  

z

Any other damage  

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

Fig. 88: Locating Orifice Cup Plug 
Courtesy of GENERAL MOTORS CORP. 

4. Inspect the 3-4 accumulator bore and the orifice cup plug (38) for any of the following conditions: 

z

Porosity  

z

Burrs  

z

Blockage  

z

Any other damage  

5. Inspect all bolt holes for thread damage. Use heli-coil to repair damaged threads.  

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

6. Inspect the cooler connectors for damage and proper torque. 

Specification: Cooler connector torque should be 38 N.m (28 lb ft) 

RETAINER AND BALL ASSEMBLY LEAK CHECK 

Tools Required 

J 29714-A Servo Cover Compressor. See Special Tools and Equipment . 

Installation Procedure 

Fig. 89: View Of 2-4 Servo 

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E