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...