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.
Disconnect and plug vacuum hose to
EGR valve, start engine and observe engine idle. If engine runs rough or stalls, check for improperly seated EGR valve.
2.
Apply manifold vacuum directly to
EGR valve with engine running at idle.
3.
If engine does not run rough or stall,
EGR valve is defective.