Chevrolet Workshop Service and Repair Manuals

INSPECT:

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Shift solenoids and PWM solenoids for:
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Cut O-ring.

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Bent electrical connector or broken wire.

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Cracked or damaged plastic housing.

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Foreign material.

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All valves and bushing for:
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Wear.

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Nicks.

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Scratches.

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Springs for damage or distorted coils.

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Valves body casting for:
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Porosity.

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Interconnected oil passages.

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Damaged machine surfaces.

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Damaged pump shaft bearing.

ASSEMBLE

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Valves, springs and bushings in the order that they came out.

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Move the valves with a pick or small screwdriver to ensure that all assemblies move correctly.

Install Control Valve Body