I know its been covered over and over again but I am just looking for a simple answer. I bought a 16" spal fan I want it wired up to the high speed and not even bother with the a/c button. So I have it grounded and connected to the blk/grn wire and when ever the ignition is turned its on even if it's not hot. How do I fix this so it just turns on when it gets hot?
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you use the temp switch on the pass side of the radiator. the one that sticks out horizontally.No more e30s for me.
88 black BMW OBDII 332is dedicated track [sold]
88 BMW OBDII bronzit 332is [RIP 03/08]
91 BMW 325i [sold]
86 Corolla 'Ae86' HB 20v trd [sold]
http://youtube.com/watch?v=pTj7Hn9v5Rs -
Yep, you've got it wired to constant power right now, you want it wired in with the temp switch so it doesn't come on until it reaches a certain temp.
I have the same one wired that way, but we're actually going to run a wire into the car with an LED so I know when it comes on, and also a switch so I can turn it on manually if I need to.Comment
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So the temp switch sticks out on the radiator on the passenger side right? I have a wire from the harness going into it and then the other two are just one wire that are both connected to the temp switch does it connect to one of those?Comment
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you dont know when your fan is on? my sounds like a plane about to take off. i also used an aftermarket temp switch that has a probe going in the radiator. for now i have it on constaint hot, so it runs when the car is off.Comment
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Ya I can tell when it's on. I don't want to use aftermarket wiring I just want to wire it to the old aux fan wiring so it turns on when it gets hot but I bought the car without the aux fan so I don't know where to wire it toComment
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Dual temp switch in the radiator is the logical choice especially if there's no aux fan."I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj
85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER
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