Chevrolet Silverado / GMC Sierra. Service manual — part 1156

10. Install the following items:

1. The forward abuse valve (357)

2. The forward abuse valve spring (358)

3. The bore plug (359)

4. The coiled spring pin (360)

5. The low overrun valve (361)

6. The low overrun valve spring (362)

11. Install the following items:

1. The forward accumulator oil seal (353) on the forward accumulator piston (354)

2. The forward accumulator pin (355)

3. The forward accumulator piston (354)

4. The forward accumulator spring (356)

5. The forward accumulator cover (363)

6. The forward accumulator cover bolts (364)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 486: View Of Manual Valve
Courtesy of GENERAL MOTORS CORP.

12. Install the manual valve (340).

3-4 ACCUMULATOR INSTALLATION

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 487: Identifying 3-4 Accumulator Piston & Piston Oil Seal Ring
Courtesy of GENERAL MOTORS CORP.

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

Porosity

Cracks

Scoring

Nicks and scratches

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

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 488: Identifying 3-4 Accumulator Piston & Accumulator Spring
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.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado