Electric Cooling Fan
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Freshman User
Joined: Nov 2001
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Electric Cooling Fan
I have replaced the fan clutch twice and both of them sound like an air plane taking off and My MPG has fell to about 9.5mpg 
. They never stop pulling even at 70mph. I need to know if I put a 16 inch aftermarket fan kit on this (88-351-c6) if it will cool it. It stays now on the O or R in Normal. After sitting for 20-30 min it will climb up to the M. Thanks
Chris
Senior User
Joined: Jul 2001
Posts: 189
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Electric Cooling Fan
I have found that if you do not use a Ford factory fan clutch you will usually have a problem. As far as the electric fan goes, I dont think that 1 fan is enough. Flex-a-lite makes a dual fan set up that works great. I had it on my 93 w/ 351 and it kept the temp gauge where ever I set the thermostat at. I noticed a huge difference in acceleration and gas mileage. The car ran quieter and more responsive at highway speeds. The main thing you need to be carefull of is where you mount the thermostat box, mount it away from the radiator and as far as you can from heat.
Senior User
Joined: Jun 2001
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Electric Cooling Fan
Depending on your area, and how hot it gets, even the dual electric fans may not provide enough cooling. I have seen several users (from southern areas, mostly) post that their electric fans just didn't cool as well as the stock fan.
Junior User
Joined: Jun 2002
Posts: 68
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From: Salt Lake
Electric Cooling Fan
Have you thought about getting a flex fan? I think they cool better, without seriously affecting the performance of the engine.
1992 Bronco Eddie Bauer: K&N, Magnaflow Exhaust, too much money in stereo equipment, 33X12.50 tires on stock suspension. Check it out: [link:aries.ccicom.com/truck|My Fat Truck]
1992 Bronco Eddie Bauer: K&N, Magnaflow Exhaust, too much money in stereo equipment, 33X12.50 tires on stock suspension. Check it out: [link:aries.ccicom.com/truck|My Fat Truck]
Elder User
Joined: Oct 2001
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Electric Cooling Fan
I put a flex-flan on my '88 F-150 with the 302, and it worked great. I never had a cooling problem, it increased throttle response, doesn't need a clutch, and sounds cool when you rev them up! If the clutch goes bad in this Bronco, I will be putting a flex fan in.
Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
Electric Cooling Fan
If you live in an area with extreme summer temps, aftermarket electric fans won't cool it. And stock fans with a shroud are superior to flex fans. The Lincoln LS fan will do it, 5000+cfm, as will late (94-96) Taurus electric fans. Both have big amperage appetites to achieve their cfm abilities, with the Lincoln requiring 80amps initial and 35-40 on a steady basis.
Get a real gauge. You don't actually know what your operating temps are with the stock resistor type gauge.
It's very possible to get two defective fan clutches in a row.
Get a real gauge. You don't actually know what your operating temps are with the stock resistor type gauge.
It's very possible to get two defective fan clutches in a row.
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Joined: Jun 2002
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From: belle chasse usa
Electric Cooling Fan
[updated:LAST EDITED ON 19-Sep-02 AT 07:02 PM (EST)]hey aaron d! have you put the flex fan in your newer bronco yet? if you did, did you leave the fan shroud in and which size spacer and fan did you use. or anyone else do this mod would like any info on it ie cooling problems with air conditioner. mine is a 95 bronco with a 302 looking for increasing ponies cheaply. already rerouted coolant hoses off the throttle body and plugged the egr valve hose that helped tremendously so far no ill effects. thanks for yalls time
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Elder User
Joined: Oct 2001
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Electric Cooling Fan
No, I haven't added the flex fan yet. I have come across some other repairs/mods that needed more attention. When I put it in my truck, I used the stock shroud and a flex fan that would fit in the shroud. As for the spacer, I basicall measured the height of the fan clutch and used that. It turned out it was just right.
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New User
Joined: Jul 2002
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Electric Cooling Fan
Something to be cautious about when using a flex-fan. Some times when you run higher RPM's, but slower MPH, (such as mudding) The flex-fan will flatten out and not draw enough air through the radiator. They are designed to flatten out somewhat at higher RPM/speeds thereby not drawing down the horsepower. Allowing the utilization of ram-air to dissipate the heat in the radiator.
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Joined: Jun 2002
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From: belle chasse usa
Electric Cooling Fan
firedude that is a good point didnt think of that, especially if you a hardcore offroader. my self most of the places i go arent very long roads or extremely muddy its just enough where you dont want to go in a 2 wheel drive. thanks for the input.
New User
Joined: Sep 2002
Posts: 2
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Electric Cooling Fan
i had a flex fan on my bronco when i first got it back in may. of course, it did not have a fan clutch, so it ran all of the time. i pulled it and put an electric cooling fan behind the radiator so it would function as a pull fan. since i have worked on mustangs most of my adult life, i had a bright idea and put a hd cooling fan and fan clutch from a 91 5.0 stang on the front of my 351. not once, while using the air or not, has the temp gauge went above the "N". i also have stainless 160 thermostat in the neck. hope this helps.
any questions email me at dustylollis@peoplepc.com
any questions email me at dustylollis@peoplepc.com
Electric Cooling Fan
