Hummer H2. Manual - part 2302

Fig. 241: Blowing Compressed Air Into Case Passage To Remove Low & Reverse Clutch Piston 
Courtesy of GENERAL MOTORS CORP. 

5. Blow compressed air into the case passage to remove the low and reverse clutch piston (695). 

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(1) LO Feed Passage  

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(2) REV Feed Passage  

CASE ASSEMBLY INSPECTION 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 242: Inspecting Spacer Plate To Case Gasket 
Courtesy of GENERAL MOTORS CORP. 

1. Inspect the spacer plate to case gasket for witness marks. The witness marks should be complete. 

Incomplete witness marks may come from an uneven case surface or from cross channel leaks. 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 243: Use Compressed Air To Blow Into All Of 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 Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 244: 2-4 Servo Bore, 3rd Accumulator Retainer & Ball Assembly, Orifice Cup Plug & 2nd 
Apply Piston Pin Bore 
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: 

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Porosity  

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Burrs  

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Debris  

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Any other damage  

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2