How do you diagnose a bad viscous fan?
How do you diagnose a bad viscous fan?
To confirm the diagnosis, start with this simple test: Spin the fan as hard as you can on an engine that has not been started that day. If the fan rotates more than five times, you can bet the clutch is bad. You should feel some resistance and the fan may spin up to three times, depending on the ambient temperature.
Why is the fan clutch on my Dodge 3500 not working?
I have a 07 3500 5.9 lit. with A/C Problems. It damagged the compressor. The Fan don’t turn when the AC is on. (Only with Temperature). The Compressor failed again. The mechanic said that if the fan clutch is going bad it causes the high pressure to build up which is bad for the compressor.
What to do if your Cummins fan clutch goes bad?
Turn on the vehicle and then turn on the air conditioner. If the air conditioner is not blowing cold air, the fan clutch may have gone bad. Your local auto parts store will have several options for installing a new fan clutch on the 2004 Cummins motor. Do not work on a warm motor. Allow the Cummins engine to cool before beginning any work.
Where is the fan drive pin on a Cummins diesel?
Using Tool 6801, backprobe pin 1 of the electronically controlled viscous fan drive connector, with the harness connected located at the lower fan shroud to battery ground. NOTE: The fan drive control coil is energized to 12 volts at this time.
Why do you need a viscous fan clutch?
Operating the electronic viscous fan clutch to maintain a reasonable head pressure is critical. The viscous fan clutch provides proper system cooling and prevents compressor clutch slippage or burning, as well as premature compressor failure. Dodge diesel trucks, as well as most other diesels models, are designed with large cooling system.
I have a 07 3500 5.9 lit. with A/C Problems. It damagged the compressor. The Fan don’t turn when the AC is on. (Only with Temperature). The Compressor failed again. The mechanic said that if the fan clutch is going bad it causes the high pressure to build up which is bad for the compressor.
Turn on the vehicle and then turn on the air conditioner. If the air conditioner is not blowing cold air, the fan clutch may have gone bad. Your local auto parts store will have several options for installing a new fan clutch on the 2004 Cummins motor. Do not work on a warm motor. Allow the Cummins engine to cool before beginning any work.
Using Tool 6801, backprobe pin 1 of the electronically controlled viscous fan drive connector, with the harness connected located at the lower fan shroud to battery ground. NOTE: The fan drive control coil is energized to 12 volts at this time.
Operating the electronic viscous fan clutch to maintain a reasonable head pressure is critical. The viscous fan clutch provides proper system cooling and prevents compressor clutch slippage or burning, as well as premature compressor failure. Dodge diesel trucks, as well as most other diesels models, are designed with large cooling system.
