3.7L V-6

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Map Sensor / ECT Sensor - 3.7L

Courtesy of DAIMLERCHRYSLER CORP.

1 - MOUNTING SCREWS

2 - MAP SENSOR

3 - ECT SENSOR

4 - FRONT OF INTAKE MANIFOLD

The Engine Coolant Temperature (ECT) sensor on the 3.7L engine is installed into a water jacket at front of intake manifold near rear of generator. See Fig 1.

WARNING: HOT, PRESSURIZED COOLANT CAN CAUSE INJURY BY SCALDING. COOLING SYSTEM MUST BE PARTIALLY DRAINED BEFORE REMOVING THE COOLANT TEMPERATURE SENSOR.

Partially drain the cooling system.
Disconnect the electrical connector from the sensor.
Remove the sensor from the intake manifold.