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4.0L The intake manifold air temperature (IAT) sensor is installed into intake manifold plenum near throttle (1) Disconnect electrical connector from IAT sen- sor. (2) Remove sensor from intake manifold. INSTALLATION 2.4L (1) Check condition of sensor o-ring. clockwise until past release tab. (4) Install electrical connector. 4.0L (1) Install IAT sensor into intake manifold. Tighten sensor to 28 N·m (20 ft. lbs.) torque. (2) Connect electrical connector to sensor. MAP SENSOR DESCRIPTION 2.4L The Manifold Absolute Pressure (MAP) sensor is mounted into the rear of the intake manifold with 1 4.0L Early The Manifold Absolute Pressure (MAP) sensor is attached to the side of the engine throttle body with 4.0L Late The Manifold Absolute Pressure (MAP) sensor is attached to the side of the engine throttle body with OPERATION The MAP sensor is used as an input to the Power- train Control Module (PCM). It contains a silicon A 5 volt reference is supplied from the PCM and returns a voltage signal to the PCM that reflects Fig. 16 IAT SENSOR TAB / O-RING - 2.4L 1 - IAT SENSOR Fig. 17 IAT SENSOR - 4.0L 1 - MOUNTING BOLTS (4) TJ FUEL INJECTION 14 - 31 INTAKE AIR TEMPERATURE SENSOR (Continued) |