DeVille DTS V8-4.6L VIN 9 (2002)
5. Remove the seven 8-mm bolts from the upper control valve body assembly.
6. Remove the following parts:
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The upper control valve body assembly (300)
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The spacer plate (327)
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The gaskets (326, 328)
5. Upper Control Valve Body Disassemble
1. Remove the 2-3 piston cushion spring (351). Inspect the spring for damage.
2. Remove the 2-3 accumulator piston (345) and seal (346). Inspect the seal for roll over or any other type of damage. Inspect the piston for nicks or
scratches.
3. Remove the snap ring (349), remove the 2-3 accumulator pin (348), and the 2-3 accumulator piston spring. Inspect the snap ring and the piston pin
for damage.