Ok guys so i've been looking and thinking about adding an auxillary fan to bring down my water temp when towing or for hot days when i want to run the a/c. I am considering pulling my radiator and cleaning it off on the backside, and at the least i will powerwash it off inside the truck.
Anyways my question is has anyone mounted an auxillary fan just for this purpose of cooling the water temps. I would wire it up to a switch only where i turn it on manually when my temps start to rise above 190, or its off if i turn it off. Where would be the best place to mount a fan and should it be a pusher or puller? I saw where one guy mounted one behind the back of the grill and he said it barely fit, but it fit. Any ideas or how abouts to go bout this?

 

Careful with the power washing, make sure you use a low pressure wand. Hate to see a guy fold over all the fins on the rad.
Most of the time guys remove the mechanical fan, and install a couple electric fans in it's place. They can be manually, or automatically actuated. Check these out:

Derale Performance Dual Electric Fans

These can be added on, as many as you want to control the fans:
Adjustable Fan Control Thermostat

I intend to use the same set up on my truck one day. Cost less then Flex-A-Lite, and more more CFM's.

 

That would be nice, but would i need a shorter belt then? and i'm not quite ready to spend that much money. Auto zone has some fans for under a hundred bucks, nothin fancy, but they are reversible, and would give just that extra amount of air travel.

 

Would need a shorter belt at all. The fan and the fan clutch are unbolted and the pulley is left in place.
A thermostat change and cleaning the rad will go a long way as well. I doubt there is enough room between the stock fan and radiator for an electric fan, but it is possible.
Generally, when driving on the road, the fan doesn't move much air, it is the speed of the vehicle that rams the air through the radiator.

If you interested in a read about electric fans, here is a thread,
https://www.dieselbombers.com/5-9l-2...ic-fans-2.html

 

I didn't even think of the stat. i'll change that out to. I'm over 230,000 miles so its prolly time. I was thinking of adding a push fan to push more air through the radiator from the front, as in possibly between the intercooler and radiator, or right behind the grill, all the way in front.

 

Aux fans not needed and replacing the factory fan with twin electric ones do not pull enough CFM's... If you truck is running hot I know the blowby bottle causes the fan to pack the radiator solid with gumk and grime. clean it out and you will have no issues staying cool...

 

a pusher fan will actually make it run hotter. pullers work the best, but as stated above elec fans will not pull the same amount of air a factory fan will. I would say get your radiator cleaned inside and out put in a new t-stat and maybe add some wetter water or purple ice to it. I have pulled a lot of trailer with my truck and never been above 220 the fan works awesome.

 

I agree with these 2^. You don't need more fans. You need to fix what's wrong.

 

ok thanks guys. i'll pull the radiator this week and clean it. may also flush the whole system and start fresh. My main cause of worry is that i have the 53 block which i've been researching. Not to worried about it, just being cautious and like my truck to run cool

 

With 230k on the truck the block has passed the test!