Jeep Wagoneer/Commando/Cherokee 1984-1998

Intake Manifold Heater Switch

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OPERATION



The intake manifold heater switch is located in the intake manifold and is controlled by the temperature of the engine coolant. Below 160°F (71°C) the manifold heater switch activates the intake manifold heater to improve fuel vaporization. The switch is not controlled by the MCU and does not provide input information to it.

 
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