OEM Dodge Ram 2500 Van Coolant Temperature Sensor

Dodge Ram 2500 Van Coolant Temperature Sensor Parts and Q&A

• Coolant Temperature Sensor
  56004815
  Q: How to service the Coolant Temperature Sensor on Dodge Ram 2500 Van?

  A:

  Before servicing the Engine Coolant Temperature (ECT) Sensor, partially drain the coolant to prevent hot, pressurized fluid from hurting you. The sensor is found in the water jacket toward the front of the intake manifold, within reach of the generator's rear. You can find the sensor in vehicles with a 5.2L/5.9L V-8 engine from the front and you won't need to take off the engine cover or air cleaner. On the 3.9L V-6 engine, you have to take off the engine cover and air cleaner housing. Unhook the negative battery cable as the first step. For this engine, slip off the engine cover and the air cleaner housing. Use a torchlight to look into the tiny sensor connector, then use an L-shaped hook angled from a wire hanger to get the sensor connector free without pulling on the wires. Once you've turned off the engine, tip the cooling system to drain a little bit and lift out the sensor from the intake manifold. Make sure the new sensor is in the intake manifold, then tighten it to reach 11 Nm (8 ft. lbs.) of torque. Join the connector to the sensor, as it does not matter which way it is installed because the sensor is symmetrical. Fill any missing coolant and cover it, then attach the air cleaner housing and install the engine cover on the 3.9L V-6 engine. Next, connect the negative battery cable back to the battery.