flex fans...will they work on our trucks? - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Engine Tunes/Mods

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  #1  
Old 12-08-2009, 09:06 PM
50655 50655 is offline
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2003 Chevy TrailBlazer LS
Dark Spiral Gray Metallic 4.2L I6 2WD
Join Date: Sep 2009
Location: Greensboro NC
Posts: 525
flex fans...will they work on our trucks?

Has anyone thought about,heard of or even using a flex fan of the same diameter in place of the factory plastic fan while still using the fan clutch assembly.Can they work or would the not pull enough air at low rpm,s due to the difference in the blade count. The ones I have seen on the flex-a-lite web site seem to only flex at a higher rpm and should cause less drag IDK any thoughts on this since nobody seems to make a plug and play e-fan kit.
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  #2  
Old 12-09-2009, 12:01 AM
sonomacrewcab's Avatar
sonomacrewcab sonomacrewcab is offline
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2002 Chevy TrailBlazer LTZ
Light Pewter Metallic 4.2L I6 4X4
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Location: leduc, ab
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look up avid performance, i think they make an electric fan controller
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Old 07-22-2019, 07:25 PM
Dmaxcc6spd Dmaxcc6spd is offline
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2003 Chevy TrailBlazer LS EXT
Silver Green Metallic 5.3L V8 4X4
Join Date: Sep 2007
Location: KY
Posts: 7
I'm having failed fan clutch symptoms again at 246000 miles. I'm considering a Flex A Lite fan and dumping the clutch all together. I realize there will be more noise and maybe less mileage, but at this mileage level, that's the last of my concerns.

Anyone know what the fan diameter is on the V8 equipped models?
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  #4  
Old 07-22-2019, 07:47 PM
Dmaxcc6spd Dmaxcc6spd is offline
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2003 Chevy TrailBlazer LS EXT
Silver Green Metallic 5.3L V8 4X4
Join Date: Sep 2007
Location: KY
Posts: 7
Factory fan measures in at 21"!! The biggest Flex A Lite offers is 19". Has anyone tried this?
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