Can someone tell me why my 05HD doesn't have E-fans?

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Oct 25, 2004 | 09:26 AM

moregrip

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Can someone tell me why my 05HD doesn't have E-fans?

I'm guessing because it's an HD but I thought the E-fans went across the board.

Can anyone shed some light?

Also no rear drums, just HUGE discs...........?????

Oct 25, 2004 | 09:51 AM

Black Blown 02

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From: Salt Lake City, Utah

Quote:

Originally Posted by moregrip

I'm guessing because it's an HD but I thought the E-fans went across the board.

Can anyone shed some light?

Also no rear drums, just HUGE discs...........?????

Probably because the clutch fan can pull alot more air when things get really hot, like heavy towing.

Oct 25, 2004 | 09:54 AM

moregrip

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Quote:

Originally Posted by Black Blown 02

Probably because the clutch fan can pull alot more air when things get really hot, like heavy towing.

that's what I was thinking too, I was hoping GM would have engineered HD type E-fans as well. Maybe just the wrong application. Do all the other HD truck mfg's use the clutch fan too?

Oct 25, 2004 | 12:28 PM

zippy

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From: Las Vegas, NV

he's right. the old clutch style is much more reliable and can pull in alot more air. i think all company's making 8600gvw and larger trucks use clutch type fans.

Oct 25, 2004 | 12:32 PM

moregrip

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Quote:

Originally Posted by zippy

he's right. the old clutch style is much more reliable and can pull in alot more air. i think all company's making 8600gvw and larger trucks use clutch type fans.

will the 05 PCM on my HD accept the E-fans? i.e. with the parts bought from GM and a Tech2 program change?