Nissan GU 3LT intercooler fan wireing
Submitted: Thursday, Nov 13, 2008 at 14:36
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GregF
Howdy All : Further to my post earlier RE the above.
I am going to wire the fan to the windscreen wireing.
Which wire is it that comes that out of the wiper motor,and what colour.
On the relay Pin #86 to wiper.
Pin #85 to Earth.
Pin # 87 to pos side fan.
Pin #30 to pos on Battery.
Could someone please advise if this is correct.
Sighned / Not much of a Sparkie.
Reply By: VH-GU4 - Thursday, Nov 13, 2008 at 16:11
Thursday, Nov 13, 2008 at 16:11
Dont remember which wire from windscreen motor, just turn key to on and see what wire has a positve supply to it with a test lamp, then join into it to power the relay. As you have said above this is the correct way to wire relay, dont forget fuse and maybe an isolator switch inline from the windscreen motor to the pin # 86 to turn off fan if you dont want it to run.
AnswerID:
335038
Follow Up By: Member - Roachie (SA) - Thursday, Nov 13, 2008 at 17:04
Thursday, Nov 13, 2008 at 17:04
Or, as I suggested previously, you can buy a cheap and simple heat-activated switch (various temperatures available) and attach it to the side of the intercooler. The wire from the wiper would go via the heat switch then to the relay.
That way, the fan only comes on when the temp on the side of the intercooler reaches the pre-determined setting (say 50 degrees C).
There is no way you would want the fan on in the middle of winter or when you're just tooling around town etc. Don't forget, the fan will be drawing a current when it's on.... and it all adds up to extra drain on your electrical system. Only a small matter but worth considering. Also, the more the fan is ON, the quicker it will wear out.
Cheers
Roachie
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Reply By: Member - Nick (TAS) - Thursday, Nov 13, 2008 at 19:53
Thursday, Nov 13, 2008 at 19:53
Or you could go the way I did with our cruiser and fit a boost switch.I set our fan to come on at 7psi, just before temps will be up and cooling needed.
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