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

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Variable Induction Control Valve: Testing and Inspection

1. Remove shutter valve actuator.
2. Verify that shutter valve rotates smoothly.
3. If valve is stuck or rotation is not smooth, check for possible obstructions and clean dynamic chamber and valve shaft.
4. If smooth operation cannot be obtained, replace dynamic chamber. Valve is not replaceable as a separate unit.