I have an '04 super crew fx4 and I replaced the factory fan with a couple electric fans. Both fans flow 2950 cfm but my question is one fan isnt working right now and I need to drive my truck tomorrow about 25 miles. Will the one fan be enough? I can keep the defrost on which will keep the fan running constantly and have the heat blowing full blast. The high for tommorow is 46 and the low is 28. also I will be on the highway, the speed limit is 70.

 

One fan should be fine in those temps

 

With those parameters you should be able to disconnect the fan & be OK.



John

 

highway driving at those temps, you should be able to drive with no fans and stay in the happy zone.