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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Diagnostic Procedures

Exhaust System, Checking for Leaks

- Start engine and let run at idle.

- Seal tailpipe with cloths or plug for the duration of the leak test.

- Listen for leaks at the following connections: cylinder head/exhaust manifold, exhaust manifold/turbocharger, turbocharger/catalytic converter etc.

- Repair detected leaks.