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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EGR Control Solenoid: Testing and Inspection

Apply 13.2 to 14.4 inches Hg. of vacuum to port connected to intake manifold and apply air pressure to port connected to EGR signal vacuum line and check for leakage. If leakage is not noted, replace assembly.