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Old 10-08-2008, 02:21 AM   #1
Join Date: Oct 2008
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Electric cooling fan?

Hello to everone! My first post here. I have a 99 Wrangler Sport with 4.0 inline 6 cylinder stock. Thinking about adding electric cooling fan and remove mechanical fan for increased H.P. Any comments on this?

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Old 10-08-2008, 08:59 AM   #2
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Location: Pocono mountains
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It has it's plus's and minus's, a correctly running system is very good, it's when you let it go, clogged rad, failing thermostatic fan clutch, old coolant, worn water pump, etc. Some jump on the electric fan in an attempt to compensate for poor maintenance when a good cleaning and R&R will solve the problem.
I know a few that have gone that route, most changed back, some are happy with it. Barring junkyard parts if you are having problems I would do the rad flush, new thermostat, fan clutch, hoses and pressure cap, might even go so far as to put a NEW water pump in [not a rebuilt].
If you are just trying to squeeze 2-3 more horsepower out then thats a different story.
My main con to electric fan is if you have an electrical problem the fan will drain the battery very fast and might mean the difference between getting off the trail and not getting off the trail, the fuel pump is a big enough drain and I would not want another 20 amps being pulled from the battery.

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Old 10-08-2008, 04:49 PM   #3
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Well, on the other side of the coin, I've really enjoyed my Flex-a-lite fan. Beside the notable HP gain, its been nice to have the switch inside the cab where I can turn it on while the ride is turned off. Not that I have a problem with overheating, but if you are in a ravine in the dead of summer in west Texas, every little bit helps!

If you do a search on the forum, you'll find several threads about it and even a few writeups on how to install one.
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Old 10-08-2008, 07:17 PM   #4
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I have a custom made one for about 100 bucks. I currently use a manual switch to turn it on but i like it. It did free up noticeable power in the high rpms and helped me reach 18 mpgs
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