Electric fans

Mooseman

Moderator
Dec 4, 2011
26,120
Ottawa, ON
No, just say no to efans. Our radiators are too marginal and the A/C will not works as well.

Been there. Never again.
 
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Stuntmanmike1977

Original poster
Member
Nov 21, 2021
184
Sanford, Maine
Need to replace the fan clutch (again) cause I can't stand the airplane groan noise. Can anyone please recommend a descent one and is it a must to replace the water pump as well? If so, rockauto sells a clutch/water pump assembly for about 150. It's made by GMB I believe. Is that a descent brand and if so is there a break -in procedure?
 

Mooseman

Moderator
Dec 4, 2011
26,120
Ottawa, ON
I would recommend the clutch for the 2008 which is thermal. However, you would need to have the PCM tuned to turn off the money light for that code. Even the cheapest one, the USMW, would be better than any of the electro-viscous ones.


Edit: For the water pump, that's entirely up to you. Depends on how old it is and if the bearings in it are getting loose. USMW are also selling a combo pump and clutch for the 2008 and it's just a few bucks more:

 

Stuntmanmike1977

Original poster
Member
Nov 21, 2021
184
Sanford, Maine
I would recommend the clutch for the 2008 which is thermal. However, you would need to have the PCM tuned to turn off the money light for that code. Even the cheapest one, the USMW, would be better than any of the electro-viscous ones.


Edit: For the water pump, that's entirely up to you. Depends on how old it is and if the bearings in it are getting loose. USMW are also selling a combo pump and clutch for the 2008 and it's just a few bucks more:

I'll see what I can find. PCM tune expensive? Is there a break in process for either one?
 

Mike534x

Member
Apr 9, 2012
1,019
I'll see what I can find. PCM tune expensive? Is there a break in process for either one?
PCM of NC offers a tune for $150, and Limeswap offers it for $99? I haven't used Limeswap before, but he's a trusted member on this forum and has had excellent feedback for what he's been able to squeeze out of this platform.

Like Mooseman suggests, I would stick to a thermalstatic clutch from an 08/09. If you do consider going that route, I do have a spare thermal clutch (Hayden #2851) that I could offload for cheap + cost of shipping to you 🙂. Makes the switch over from EV clutches easier as well.

There isn't a break in period for the clutches, you just install them and that's it pretty much it. The aftermarket units do tend to have extended engagements during a cold start, otherwise they function exactly like old school clutch's did before being computer controlled.
 
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Stuntmanmike1977

Original poster
Member
Nov 21, 2021
184
Sanford, Maine
Just found the box of the last fan clutch I bought and it is indeed a Four Seasons thermal fan clutch on it now. Didn't realize I got that one. Didn't get any engine codes but only lasted a year and a half. 46024 I believe is the part number. I also replaced the water pump then too .
 
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Mooseman

Moderator
Dec 4, 2011
26,120
Ottawa, ON
The 46024 is the EV style clutch. I usually steer clear of Four Seizin'. The Hayden thermal is good except for cold engagement that @Mike534x mentioned, which frees up after a couple of minutes.

I've used Limeswap and he's excellent. You can also get other stuff tuned at the same time. Only thing though is that you have to send your PCM in to him so your truck will be down while it's out unless you get a loaner but will incur extra shipping charges. You can discuss this with him.
 
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