LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Low fans not working.

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Old Nov 26, 2006 | 11:03 PM
  #1  
LT1 POWR's Avatar
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Low fans not working.

I have checked all the fuses and relays and I cant find out why my low fans are not comeing on. I have a SLP manual fan switch and i can turn on the highs, but the lows dont work.

Is there anything else I can do? Can i disconnect the plug ins and check for a certain voltage? If so, what should it be?
Old Nov 27, 2006 | 07:09 AM
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Unplug the connector where you plugged in you SLP fan switch. Ground the green wire in cavity J toward the fans (front of the car). If that makes your low fans come on, everything from that point to the fans is good. The fan switch should put a ground to that wire in low speed.
Old Nov 28, 2006 | 10:23 PM
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Thanks shoebox. I tried that and they came on, so I looked further back in the wireing. I found the problem at the switch. The wires had broke off the connectors. I tried to solder them back on, but they are too small and I ended up messing it up even worse. So I called SLP and they want something like $25 just for the switch part, so I think i'll try to make my own with a switch from radio shack or something. Its just 3 wires correct? A ground, a high fan and a low fan?
Old Nov 28, 2006 | 10:33 PM
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Fan schematics can be found on my Tech Page.
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