Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Control Valve Body Inspection






1. Inspect the control valve body for the following:
^ A damaged or rough pump shaft bearing
^ Casting porosity
^ Interconnected oil passages
^ Damaged machined surfaces
^ Foreign material
2. Inspect the solenoids for the following:
^ Cut seals
^ Bent connectors or broken wires
^ Cracked or damaged plastic housings
^ Foreign material
3. Inspect the valves and bushings for the following:
^ Wear
^ Nicks
^ Scratches
4. Inspect the springs for damaged or distorted coils.