Loss of Power after New Fan Clutch
Hello Everyone, I have a 2007 Dodge Ram 1500 5.7 and it blew the water pump and fan clutch at the campsite. Got it towed to a auto repair store in San Diego and they replaced the fan clutch, water...
Forum Discussion
Cummins12V98 wrote:ScottG wrote:Devo the dog wrote:
Put on an electric fan.
No electric fan can move as much air as the stock clutch fan on these trucks. That's why they use them.
I agree on that if he had a Diesel. Some of the electric fans do a great job on gassers.
No difference between the two when it comes to cooling. The truck was designed with a 15~20 HP fan to move enough air. That HP is directly proportionate to air movement. The clutch doesn't take more power because it's inefficient, it needs more power because it does more work. No electric fan will move as much air and if the truck is operated near its limits, it will overheat with one. Not talking about any other truck than the OP's. If he takes off the clutch and cobs on an aftermarket unit, it will overheat at its limits.
But even newer 1/2T's have clutch fans. My neighbor has a late model F150 with HD towing pkg and it has a large clutch fan - because that's what it needs to keep temps down.
It would be a mistake to try and get rid of perceived parasitic losses at the expense of cooling power.
Also, you do not want to add an electric fan to a system that already has a clutch unit. The electric fan will block airflow and cause performance issues. Besides, pusher fans don't work nearly as well as pullers.
