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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Idle Speed: Testing and Inspection

1. 1. Start the Engine. Hold the Engine at 3,000 rpm with no load (Shift Lever in N or P position) until the Radiator Fan comes on, then let it idle.




2. Connect a Tachometer to the Test Tachometer Connector.

Idle Speed: 700 ± 50 rpm with Shift Lever in N or P position

3. Adjust the idle speed if necessary.