slydogg Posted December 23, 2011 Report Share Posted December 23, 2011 still have an issue with this thing. i have a two wire,one fan. oem harness has four wires. big blue which is always hot, blue white wire, black yellow, and black. i tried the bluewhite to hot wire on the fan, black to grnd, and yellow to thermosensor but unless i'm not letting it get hot enough it's not coming on. what am i doing wrong? Link to comment Share on other sites More sharing options...
Spooled_Starion Posted December 23, 2011 Report Share Posted December 23, 2011 Run it to a on/off toggle switch. Worked great for me when I did that on my 88 Link to comment Share on other sites More sharing options...
Komeuppance Posted December 23, 2011 Report Share Posted December 23, 2011 Ground the yellow wire, it should kick on the relay and turn on your fan. If not, then you've got some digging/testing to do. -Robert Link to comment Share on other sites More sharing options...
Indiana Posted December 23, 2011 Report Share Posted December 23, 2011 If you put your fan on a manual switch its either on too much and ruining your alternator or you forget to turn it on and you're screwed. Let the sensor do its job. It is not complicated. All you need to do is look up how a relay works. Link to comment Share on other sites More sharing options...
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