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
Engine Spark Knock or Ping
CONDITION ^
Engine spark knock or ping
POSSIBLE SOURCE ^
EGR valve malfunction.
-
Perform
EGR valve functional diagnosis.
^
EGR valve attaching nuts or bolts loose or missing.
-
Replace flange gasket and tighten valve attaching nuts or bolts to specification.