Sierra 1500 4WD V8-5.3L VIN B HO (2006)
Accumulator: Service and Repair
4L80-E/4L85-E - Automatic Transmission
Accumulator Housing Replacement
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Tools Required
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J 25025-5 Valve Body Align Pin
Removal Procedure
1. Remove the valve body.
2. Remove the 3rd and 4th clutch accumulator housing bolts (1).
3. Remove the 3rd and 4th clutch accumulator housing (8).
4. Remove the accumulator housing gasket (6). The accumulator housing gasket may be stuck to the spacer plate (5).
5. Remove the 3rd clutch accumulator piston spring (7).
6. Remove the 4th clutch accumulator piston spring (2).
7. Remove the valve body spacer plate (5).
8. Remove the valve body to spacer plate gasket (4) from the spacer plate (5).
Third and Fourth Clutch Accumulator Disassembly
1. Remove the 3rd clutch accumulator piston (2).
Important: Apply low pressure compressed air to the hole at the top of the accumulator housing to assist with the piston removal.
2. Remove the 3rd clutch accumulator piston seals (1, 3).
