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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Localized Testing (Spot Testing)




Localized Testing (Spot Testing)

Perform a localized test for leaks using either water or air. Begin the test at the base of the suspected area. Slowly continue upward until you locate the leak.

Important:
1. Pinpoint the leak area before you make any repair. Random repair may only temporarily restrict water entry. This may make future diagnosis and repair more difficult.

2. Continue localized testing in the same general area in order to confirm that you have located all of the leaks.