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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On-Vehicle Inspection

1. Crank the engine and listen for initialization noise (clicks) of the EGR valve using a screwdriver or a soundscope.
- If the initialization noise is not heard, inspect for continuity of the wiring harness between the EGR valve and the PCM, and inspect the EGR valve.

NOTE: EGR valve initialization is closing action of the valve observed before and after the engine is started, and when the engine is stopped.