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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Hot Idle Compensator (Non Comp. Controlled): Testing and Inspection

Fig. 8 Checking Hot Idle Compensator Operation:





1. Remove air cleaner.
2. Disconnect vacuum hose from HIC.
3. Check temperature at HIC with thermometer.
4. Blow air into HIC. HIC should be closed at temperatures below 113°F and open at temperatures above 149°F, Fig. 8.
5. Reconnect vacuum hose, and reinstall air cleaner.