Hammy360
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| posted on 16/5/11 at 07:00 PM |
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Electric cooling fan
A total newbie to vehicle wiring so please excuse my ignorance as Ill probably be posting a lot over the next couple of weeks!
Im fitting my loom from premier wiring and want to know how the cooling fan works. I have the live feed but how does the fan know when to come on. I
presume it needs a sensor/thermostat but am not sure further than that......
Also, what are the two electrical outputs from the MT75 gearbox are for? Im assuming one for reverse light?
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femster87
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| posted on 16/5/11 at 07:10 PM |
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you need a fan switch, that comes on at a preset temperature. Or you can have some that you can set the temperature u want it to switch at
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adithorp
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| posted on 16/5/11 at 07:11 PM |
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Normally the live goes to a sensor in either the rad', engine or top hose and then to the fan then to earth. What rad are you using? Polo ones
have a boss to take a fan switch. Alternativly you could take the live via a manual switch, but that riscs forgetting to switch it (or split the live
and do both so have an overide switch)
The 2 wires to the gearbox are probably live feed to the rev' switch and then return to the light I'd assume.
[Edited on 16/5/11 by adithorp]
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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big_wasa
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| posted on 16/5/11 at 07:18 PM |
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The multi pin mini timer plug on the side of the box is the reverse switch and the 3 pin plug on the tail is the speed sensor for the ecu on the
sierra/ granada ect.
I run my telemetrix gauge from this. Ultra smooth compared to magnets on the prop and nothing to fall of.
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snapper
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| posted on 16/5/11 at 08:11 PM |
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The fan takes a fair bit of power so will need to be run through a relay.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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Hammy360
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| posted on 16/5/11 at 08:15 PM |
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Thanks lads
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