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Electric Fans

This is a discussion on Electric Fans within the GM Trucks forums, part of the Vehicle Specific category; I was wanting to know if anyone had installed electric fans on their truck, this a 04 chevy 5.3 and ...

  1. #1
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Electric Fans

    I was wanting to know if anyone had installed electric fans on their truck, this a 04 chevy 5.3 and summit has a kit that is a direct fit [flex-o-lite 292] . Could you tell the diference in fuel miliage and help with power? Already did the TB by pass and thinking about a catch can, it worked well in the GTO. Thanks

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    Senior Member JaycenK's Avatar
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    Green
    1997 Camaro Z-28

    Is this a fan kit that runs all the time?

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    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Jay, Thanks for responding. No this comes with a thermostat for the engine temp and a relay for the AC, also an overide switch to turn them on when you want to, and the are 60% and 100%.

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    Senior Member JaycenK's Avatar
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    It will free up some power on one side but takes it in another. The alt needs to make power by taking power from the motor so I don't know if you will feel it. if air is going into the grill your loosing fuel mileage just cuz of drag. Kind of the problem with trucks, they need the air but they are bricks in the wind. Fans running or not running will not affect it much but getting the clutch fan off the motor will help a little. It always comes down to $$$$ the electric fans wont cool the motor better but the will use power and that can cause drag on the belt system because of the alt making power to power the fans. If you can get someone who actually put numbers to paper and tested what the fans are worth that would tell you the storey of how much it helps. just my 2 cents that may end up costing you 50 bucks lol.

  5. #5
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Yea, It's like a catch 22, and then you got the brick like you said---see if someone will give me some good info, also want to check out a catch can the GTO liked it and think it would be good for any engine, still researching, like you said it's all about$$$$$$$$$$$$$$$$$$$$. Thanks, Jay

  6. #6
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    black
    2002 z71

    gm went to duel fan's in 05 or 06 i think so it must have some benifit
    If speed kill's do brakes give life ?

  7. #7
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Good point!!

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    2007 Cadillac Escalade
    98 Camaro SS, 09 G8 GT

    DO NOT USE THE FLEX-O-LITE'S. This has been discussed 100+ times on Performance Trucks.net Get factory gm fans off ebay from an 05 and up 5.3 Silverado. You can get the harness from Nelson Racing. The E-Fans made a world of a difference on my truck. It also keeps my tranny temps lower. If you go the nelson route, you'll need to have you tune modified so the computer will control your fans. The other nice part of the factory fans is the bolt holes are already there....it slips right in and only uses 2 bolts on top. If you want some before and after pics of the GM fans installed or have any questions, feel free to PM me.
    1998 Sebring Silver Camaro SS Convertible
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    2007 Black Raven Cadillac Escalade
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  9. #9
    Member Texas Jack's Avatar
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    Cyclone Grey
    2006 GTO M6

    Thanks brother, I really thank you for responding. You saved me a lot of hassle!

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