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
EGR Valve Check:
1.
Run engine at idle.
2.
Disconnect vacuum hose at valve.
3.
Connect
vacuum pump to valve and apply
1.6 - 2.3 in Hg (40 - 60 mm Hg, 5.4 - 7.7 kPa) vacuum. Verify that engine runs rough or stalls.
4.
If not as specified, replace valve if no other problems (such as clogged passages) are detected.