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09-20-2007, 01:24 AM
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Hummer Professional
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Join Date: Jul 2005
Posts: 278
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fan replacement
I copied this from a coloradofans.com post.
Source ALLDATA
Campaign - Engine Cooling Fan Replacement
Subject:
Product Enhancement for Inventory and Customer Vehicles - Engine Cooling Fan Noise - Expires with Base Warranty
# 06157 - (10/10/2006)
Models:
2007 Chevrolet Colorado
2007 GMC Canyon
2007 HUMMER H3
THIS PRODUCT ENHANCEMENT INCLUDES VEHICLES IN DEALER INVENTORY AND CUSTOMER VEHICLES THAT RETURN FOR ANY TYPE OF SERVICE, AND WILL EXPIRE AT THE END OF THE INVOLVED VEHICLE'S NEW VEHICLE LIMITED WARRANTY PERIOD.
Purpose
This bulletin provides a service procedure to remove the seven-blade engine cooling fan and install an eight-blade fan on certain 2007 Chevrolet Colorado, GMC Canyon, and HUMMER H3 vehicles. The seven-blade fan on these vehicles may cause excessive noise.
This service procedure should be completed as soon as possible on involved vehicles currently in dealer inventory and customer vehicles that return to the dealer for any type of service during the New Vehicle Limited Warranty coverage period, at which time this bulletin will expire.
Vehicles Involved
Table would not paste but Vins in certain rage and the dealer check via
GMVIS
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09-20-2007, 02:44 AM
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Hummer Authority
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Join Date: Aug 2006
Location: Oregon
Posts: 1,055
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Re: fan replacement
Thanks for the info, can I get one for my 06?
__________________
06 Slate Blue, manual, Adv. Pkg., Monsoon, sunroof, brushguard, rock rails, ucp, tow pkg, K&N intake, underhood air compressor, Warn Lights, Spider rear Diff. cover
Black Sheep Hummer Squadron
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09-20-2007, 09:31 PM
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Hummer Professional
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Join Date: Jul 2005
Posts: 278
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Re: fan replacement
I don't know. I have an 06 too.
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09-20-2007, 11:31 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: fan replacement
Couldn't hurt they run hot. Extra blade would add 12+% more cooling air 
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"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
(John 3:16)
2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
Priors...
Explorer
Commander
71 Vette
You Name it!
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09-25-2007, 03:41 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
Posts: 3,789
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Re: fan replacement
My early build 6/05 has 8 blades 
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H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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09-25-2007, 11:34 PM
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Hummer Authority
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Join Date: Aug 2006
Location: Oregon
Posts: 1,055
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Re: fan replacement
Quote:
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Originally Posted by fourfourto
My early build 6/05 has 8 blades |
Mine too! 
Must be specific to the Colorado and Canyon.
__________________
06 Slate Blue, manual, Adv. Pkg., Monsoon, sunroof, brushguard, rock rails, ucp, tow pkg, K&N intake, underhood air compressor, Warn Lights, Spider rear Diff. cover
Black Sheep Hummer Squadron
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09-26-2007, 12:01 AM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
Posts: 3,789
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Re: fan replacement
Its says 07 hummers also  they probably went to 7 to save weight  I wonder how much that mistake cost them  stupid engineers
__________________
H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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