Operation CHARM: Car repair manuals for everyone.
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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Glow Plugs Inspecting



Glow Plugs Inspecting
Burnt electrodes in glow plugs are frequently caused by malfunctioning Fuel Injectors. Damage of this nature is not caused by malfunction of the glow plugs.





If inspection reveals glow plug damage as shown (-arrow-), replacing the glow plugs is not sufficient. The Fuel Injectors must also be tested for opening pressure and leakage.