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 Valve: Service Precautions

CAUTION: When removing EGR tube assembly, be careful not to drop the silicone rubber seals in the intake manifold.

NOTE: Clean gasket surfaces on the EGR valve. Note that any loose dirt can lodge between the pintle and seat and creating leakage that will give rough idle and depressed manifold vacuum.