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

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

Hot Idle Compensator:






NOTE: Never touch bimetal temperature sensing portion of hot idle compensator.

- Remove air cleaner if necessary and attach a test hose to hot idle compensator.
- With a suitable thermometer, check temperature in immediate vicinity of compensator.
- Blow on the hose. If the temperature is above 46° -52° C (115° -126° F), air should pass through compensator. Air flow should be blocked if temperature is below specification.
- To facilitate testing, a hair dryer may be used to raise the temperature.
- Replace the hot idle compensator if it fails this test.