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)

Or, hide this message: temporarily or permanently

Variable Induction System: Testing and Inspection

VARIABLE INDUCTION CONTROL (VIC) SYSTEM CHECK <3.0L ENGINE - with VARIABLE INDUCTION CONTROL (VIC) system>

1. Warm up the engine.




2. Disconnect the vacuum hose from the variable induction control actuator, and then connect a vacuum gauge via the Tee-fitting.
3. Start the engine and verify that a vacuum is applied to the vacuum gauge.




4. As described in the chart, vary the engine speed to inspect the vacuum conditions. During this inspection, verify that the rod of the variable induction control actuator is operating.