June 19, 2007OK....I am a newbie here. I have read NUMEROUS posts about electric fan swaps. I have a 2004 Chevy Crew Cab with 5.3L. I know the 05+ trucks come with an electric fan, but evidently the radiator is wider. Is there a way to make the 05+ fan fit the narrower radiator? Has anyone done this? I know many have done the LS1/LT1 fans, but I thought the oem truck fan would be better.....if it could be made to fit. ANY INSIGHT or HELP APPRECIATED!! THANKS!!
Forums : Other Engine Mods : 05+ E Fans....Anybody Done The Swap? (464 Views)
June 19, 2007The 2005 1500 have a 34" radiator and yours should be a 28" radiator so I don't think you can get the oem fans to work unless you replace the radiator as well. I would look into a flex A lite kit or any kit that you can find that has close to the same measurements with at least twin 12" or 14" fans. I just did a e-fan setup on mine last week using a dual 15" oem fan setup, but my suburban has the 34" radiator just like the 2005's. Look around on ebay for a deal. I picked mine up for $125 brand new. One of the best deals I've found so far on ebay.
June 19, 2007If I can come across a 34" radiator, would it be a complete bolt in deal....I mean all coolant hoses and lines in the right spot with the correct fittings to just screw on? Has anybody done the bigger radiator swap?
June 19, 2007Your upper and lower radiator hoses might be a hair short, but you can buy 2005 hoses if you swap the entire thing out. You will have to buy a harness to hook the fans to your pcm and then have the e-fan feature turned on in your pcm if you want them controlled like the newer trucks.
I'm not too positive about how well everything will fit. I really don't think there are many differences between the two years at all, but that's just a guess. Do you know anyone with a 2005 model? I would do a comparison between the two for line locations. I know the coolant level sensor is on the rh side on both years.
June 19, 2007Just look for fans off a 98-02 F-Body... Will do the job...
They can be found for about $100... Then you can have your PCM flashed for them to work (which your gunna have to do anyways)
June 19, 200704 Z71 Crew Cab, the 34 inch radiator is just bolt up. Bolt holes are in your Radiator Support already. Make sure to get the correct line fittings and all for the tranny cooler.
I added the 34 inch rad. and the Flex-a-lite fans with no problems..JohnB
June 29, 2007I have a set of brand new 05 e-fans I got for free and the harness to wire them up complete with the pigtails. I found out the hard way that they wont fit so I've been keepin my eyes open for a 34 inch radiator. Anybody trying to get rid of one by any chance?
July 1, 2007Wow, so your telling me those 05' e-fans would fit on my 34" radiator with no problems? how about the fan shroud, or are you guys just zip-tying those things to your radiator?
July 1, 2007They are pretty easy to adapt to your truck if you've got the 34" radiator. Mine are oem fans that I picked up on ebay. They worked our perfectly. They even had a clip on top that clipped right onto the top of the radiator.
July 1, 2007does anyone by chance know how much amps their going to draw? i already have my alternator failing because of my stereo... ill probably be buying a delco 140 amp pretty soon, but are these things going to need a power plant? Also i dont see any of these fans on ebay, where else could i go for something like this?
Lastly suberbia, was that piece of sheet metal apart of the radiator shroud or is that something else.
July 2, 2007The 05 e-fans bolt right up to the radiator core support, there are already holes in it for them to bolt to. A good idea on GM's part I suppose.....
Update: I'm getting a 34 inch radiator on Thursday along with a new rear bumper, towing package, and trailer light harness off of an 05 GMC for 200 bucks. I got a great deal!