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: Testing and Inspection

1. Remove EGR control valve from engine.
2. Apply vacuum to valve. Valve should move to full-up position and remain there for at least 30 seconds after vacuum is cut off.
3. Visually inspect valve for damage or deformity.
4. Clean valve seat with brush and compressed air, and remove foreign matter from around valve and port.