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.
Ensure
EGR control valve rod slides smoothly by hand.
2.
Disconnect vacuum hose from
EGR control valve and connect
vacuum pump to valve.
3.
Start engine and run at idle, then apply vacuum.
4.
If engine does not run rough or stall with 1.6---2.4 inch Hg of vacuum applied, replace
EGR control valve.