Hummer H3. Manual — part 852

Fig. 439: Locating Accumulator Piston & Oil Seal Ring
Courtesy of GENERAL MOTORS CORP.

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

Porosity

Cracks

Scoring

Nicks and Scratches

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

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 440: Locating 1-2 Accumulator Housing Inspection Areas
Courtesy of GENERAL MOTORS CORP.

3. Inspect the 1-2 accumulator housing for the following conditions:

Porosity

Cracks

Scoring

Nicks and Scratches

Debris or blocked passages

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 441: View Of 1-2 Accumulator Piston, Inner & Outer Accumulator Springs &
Housing
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Some models may not use an outer 1-2 accumulator spring

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

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

5. Install the 1-2 accumulator piston (56).

1-2 ACCUMULATOR INSTALLATION

Tools Required

J 25025-5 Guide Pins. See Special Tools.

J 36850 Transjel Lubricant

Installation Procedure

(54).

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3