Dodge Diesel Fan Clutch Problems

Fan and fan clutch.

Dodge diesel fan clutch problems.

The air conditioning head pressure is reported to the ecu by a transducer located in the discharge line and will cause the fan clutch to engage almost every time the truck idles for a few minutes in warm weather. The first time that the compressor was replaced the system was flushed including chemicals. A bad fan clutch may not engage properly or at all and as a result will disable the fans or prevent them from working at maximum efficiency. This can cause bearing damage radiator damage if the blades flex too far or even shatter a plastic fan.

One of the first symptoms that is commonly associated with a bad or failing fan clutch is an overheating engine. Silicone fluid leaking from the fan clutch would cause this problem. In case the pressure plate is not releasing evenly one side of it can drag and fail to release. If you are not hearing it speed up when the ac compressor kicks on it is a pretty good bet the clutch is bad.

Replacing your fan clutch can improve your a c system and keep the engine cooler. Another common problem with the new cummins motor is that the electrical cable can be cut while the fan is engaged. This video demonstrates the typical characteristics of a bad fan clutch. The two most common causes for this problem especially after a dodge clutch replacement is insufficient travel on the throw out bearing or a defective pressure plate.

Lock up on the fan clutch is controlled by the computer. The second time too but installing brand new condenser and filter. Fan spins after engine shut down might indicate a weak clutch. If your dodge cummins radiator fan can stop while the engine is running it s likely the fan clutch has failed.

Replace it with an oem clutch fan from mopar. The fan clutch is responsible for controlling the operation of the cooling fans. Check the electrical cables that run from the motor to the fan clutch. Usually a bad or failing fan clutch will produce a few symptoms that can alert the driver of a potential issue.

Dodge diesels are fitted with an electronic viscous fan clutch which is electrically activated by the ecu when the engine temperature reaches high temperature or the air conditioning head pressure reaches 240 to 270 lbs.