C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
15. Remove the 3-4 accumulator piston seal (1) from the 3-4 accumulator piston.
16. Inspect the 3-4 accumulator piston for the following defects:
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Porosity
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Cracks
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Scoring
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Nicks and scratches
Installation Procedure
1. Install a new 3-4 accumulator piston seal (1) to the 3-4 accumulator piston.
2. Install the 3-4 accumulator pin (1) into the transmission case and retain the pin with J 36850.