Hummer H2. Manual - part 2576

Fig. 272: Identifying Inspection Areas On 3-4 Accumulator Piston 
Courtesy of GENERAL MOTORS CORP. 

1. Inspect the 3-4 accumulator piston (44) for the following conditions: 

z

Porosity  

z

Cracks  

z

Scoring  

z

Nicks and scratches  

2. Install the 3-4 accumulator piston oil seal ring (45) on the 3-4 accumulator piston (44). 

 

2004 Hummer H2 

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

  

Fig. 273: View Of 3-4 Accumulator Piston & Seal Assembly 
Courtesy of GENERAL MOTORS CORP. 

3. Install the 3-4 accumulator piston (44) and seal assembly into the bore.  

4. Inspect the 3-4 accumulator spring (46) for cracks. 

5. Install the 3-4 accumulator spring.  

1-2 ACCUMULATOR DISASSEMBLE 

IMPORTANT: Some models do not use a 3-4 accumulator spring.

 

2004 Hummer H2 

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

  

Fig. 274: View Of 1-2 Accumulator Components 
Courtesy of GENERAL MOTORS CORP. 

1. Blow air into the 1-2 accumulator housing (57) to remove the 1-2 accumulator piston (56).  

2. Remove the 1-2 inner (104) and outer (54) accumulator springs.  

1-2 ACCUMULATOR ASSEMBLE 

IMPORTANT: Some models do not use 1-2 accumulator spring - inner (104).

 

2004 Hummer H2 

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

  

Fig. 275: Inspecting 1-2 Accumulator Piston 
Courtesy of GENERAL MOTORS CORP. 

1. Inspect the 1-2 accumulator piston (56) for the following conditions: 

z

Porosity  

z

Cracks  

z

Scoring  

z

Nicks and Scratches  

2. Install a 1-2 accumulator piston oil seal ring (55) on the 1-2 accumulator piston (56). 

 

2004 Hummer H2 

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