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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Fuel Filter: Testing and Inspection

A. Diagnosis of the fuel filter can be found in the Contamination Testing Procedure. Testing and Inspection

B. For diagnosis of the Water in Fuel lamp circuit, refer to the Water in Fuel Lamp Circuit Diagnosis. Testing and Inspection

C. Diagnosis of the fuel heater can be found in the Fuel Heater Functional Diagnosis. Testing and Inspection