Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
Accumulator: Service and Repair
4L60-E/4L65-E/4L70-E - Automatic Transmission
Accumulator Assembly, Spacer Plate, and Gaskets
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Tools Required
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J 25025-B Pump and Valve Body Alignment Pin Set
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J 36850 Transjel Lubricant
Removal Procedure
1. Remove the transmission filter.
2. Remove the valve body.
Important: The 1-2 accumulator can be removed without removing the valve body.
3. Remove the accumulator cover bolts.
4. Remove the 1-2 accumulator cover.
5. Remove the 1-2 accumulator cover (57) and pin.
Important: Regular production option (RPO) M33 transmissions do not use a 1-2 accumulator spring inner (104).
6. Disassemble the 1-2 accumulator assembly (54, 56, 57, 104).
7. Inspect the 1-2 accumulator springs for cracks.
