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)
Or, hide this message:
temporarily or
permanently
Exhaust Gas Recirculation: Testing and Inspection
1.
Start engine.
2.
Accelerate engine and ensure diaphragm of
EGR control valve does not move while engine is still cold.
3.
Warm engine to normal operating temperature and run at idle.
4.
Accelerate engine and ensure diaphragm of
EGR control valve moves upward.