My brother inlaw has a 08 gc limited with a 4.7 he hated the way it sounded when he would accelerate so we desided the remove the fan and clutch. And he said it accelerates better and hasent overheated even in the summer so i wanna know if any of the 4.7 guys have done the same?
On my 05 4.7l there was 2 fans an electric fan and a clutch fan electric fan is up against the radiator and the clutch fan is behind it. When I replaced my waterpump I kept the clutch fan off and I don't have any problems with overheating even during the summer. I'm a delivery driver and even in hours of constant city driving during the summer it runs just fine. I think all WKs come with the electric and with the tow package they include the clutch fan. The jeep does feel better without the fan on it too. I don't do much towing but I do plenty of off-roading up in the mountains and with the slow driving in 4 low it still keeps it cool. Sent from my Jailbroken iPhone using JeepForum
| (dark)KHAKI WK CLUB MEMBER 17 | 2005 4.7L QTII | JBA UCAs | Modified OME MD 3.5" lift | Rusty's Adj. track bar | 4XG Matrix | 285/70r17 Duratracs | 17" KMC Enduro Wheels | Rola Roof Rack | 21" Bean LED Light bar on Roof Rack | 2 12" Punch P3 Subs | Expanded Sheet Grille | SA Sliders |
The guy stated he didn't like the sound of the mech fan, the performance gain was a bonus after the fact.
This is very common with 4.7 Dakota owners. Myself included while I owned one. I believe the GC's have a much larger e-fan than the Dakotas did stock which further lessens the heat issue.
The only 'issue' is that the stock efan doesn't come on until the engine is a little warmer, an issue I corrected by running a stand alone fan controller.
When towing, put the fan back on. Otherwise, leave it off and enjoy the lack of an underhood tornado.
Hopefully, there was more thought put into removing the fan/clutch than simply not liking the sound. Again, this "common" mod is geared more toward the street guys and most likely other measures are taken to ensure heat issues ^^^ like stated above.
Otherwise, you're subjecting the engine to chronically higher than normal operating temps and relying on the AUXILIARY electric fan to do all the work.