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
If it fails: lemon-manuals.org.ua

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Radio Interference

1. Start engine.
2. Tune radio to station where interference is present.
3. Remove 3-pin voltage regulator connector.
4. If interference is still present, problem is not caused by alternator.
5. If interference is not present, replace alternator.