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)

Or, hide this message: temporarily or permanently

Alternator & Regulator Check


Alternator peak voltage could cause engine misfiring.
1. Remove alternator drive belt, then the alternator (if necessary).
2. Start engine and operate at speed misfire was noted at. If misfire is cleared up, check alternator and regulator.