Minimum Idle Speed

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NOTE: Minimum idle speed adjustment can only be performed on 7.4L engines. For minimum idle speed adjustment procedures, see ADJUSTMENTS - GASOLINE article in the ENGINE PERFORMANCE section.

MINIMUM IDLE SPEED - 7.4L ⁽¹⁾

Application

RPM

Auto. Trans. ⁽²⁾

600-650

Man. Trans. ⁽³⁾

675-725

⁽¹⁾	Idle speed with seated IAC is lower than specified if engine has less than 500 miles or when checked at altitudes above 1500 feet.

⁽²⁾	Automatic transmission in Drive.

⁽³⁾	Manual transmission in Neutral.