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Jim5.0 Offline
#1 Posted : Tuesday, 5 July 2005 10:45:29 PM(UTC)
Jim5.0

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I am replacing the noisey horsepower sapping fan on my EB with a pair of EF fans.

I believe that one of the EF fans cuts in and out with the airconditioning compressor & they both cut in for cooling duties.

My question is which fan cuts in with the compressor? the drivers side or the passenger side fan or is it both?

XB351 Offline
#2 Posted : Wednesday, 6 July 2005 4:07:47 AM(UTC)
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No. They are controlled by the ECU and a trigger via the aircon.

How they work in a simpler form is :

a) low speed fan (on at just over normal temp)
b) high speed fan (on when the temp gets higher than the ECU likes)

Both fans can be triggered
XB Fairmont sedan : [email protected]
Jim5.0 Offline
#3 Posted : Friday, 8 July 2005 10:23:04 PM(UTC)
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Thanks for that Brendan. It looks like I have one single speed motor (2 wires) & one 2 speed motor (3 wires)

A couple more questions the 2 speed motor has 3 wires 1 black (negative?) 1 white and 1 red. if I connect all three It runs at high speed is

XB351 Offline
#4 Posted : Saturday, 9 July 2005 8:06:25 PM(UTC)
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No problems.

The black wire ground.
All the other wires are "+" power.

If you don't connect the white wire you won't get the highest speed. I joined the white wire and the red wire together and connected them to a relay to make sure they ran at fu
XB Fairmont sedan : [email protected]
XB351 Offline
#5 Posted : Saturday, 9 July 2005 8:07:39 PM(UTC)
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You can run the fan on eitherside. It doesn't matter. Factory low speed is on the passenger side and high speed on the driverside.

XB Fairmont sedan : [email protected]
XB Fairmont sedan : [email protected]
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