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Fans stopped working

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Old Jul 3, 2009 | 08:12 PM
  #1  
unknown459's Avatar
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From: Sacramento
Car: 1992 Z28 Vert
Engine: 5.0
Transmission: 5 Speed
Fans stopped working

Just bought a 91 Z28 5.7 and the AC went out. So I fixed that now the Fans don't turn on. I checked the fuses they are all good. Any Ideas?
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Old Jul 3, 2009 | 10:08 PM
  #2  
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From: Big Lake, MN
Car: 1986 Iroc-Z
Engine: 305 TPI
Transmission: T-5
Axle/Gears: 3.73 posi
Re: Fans stopped working

Have you checked the relays? There should be relays for the fan on the drivers side firewall just to the right of the brake master cylinder. If you have the A/C on the fan should run constantly.
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Old Jul 3, 2009 | 10:29 PM
  #3  
unknown459's Avatar
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From: Sacramento
Car: 1992 Z28 Vert
Engine: 5.0
Transmission: 5 Speed
Re: Fans stopped working

Ok I will replace them thanks for the info.
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Old Jul 3, 2009 | 10:34 PM
  #4  
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From: Big Lake, MN
Car: 1986 Iroc-Z
Engine: 305 TPI
Transmission: T-5
Axle/Gears: 3.73 posi
Re: Fans stopped working

you dont really have to replace them, there are ways of testing them. You can use a test light to test them. Im not sure about your car, but my car had one more relay that you should check by the passenger side front. Should be on the same wiring for the fan.
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Old Jul 3, 2009 | 10:54 PM
  #5  
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From: Houston, TX
Car: 1989 GTA
Engine: SuperRam 350
Transmission: Pro Built S/S TH700R4
Axle/Gears: 3.27
Re: Fans stopped working

Check my sig.
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Old Jul 4, 2009 | 01:11 PM
  #6  
unknown459's Avatar
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Joined: May 2007
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From: Sacramento
Car: 1992 Z28 Vert
Engine: 5.0
Transmission: 5 Speed
Re: Fans stopped working

Checked all the relays they work. fans still dont work. I tested them to the battery and they come on. Any other idea's ?
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Old Jul 5, 2009 | 09:55 AM
  #7  
zraffz's Avatar
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Joined: Mar 2009
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From: Sussex County, NJ
Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Fans stopped working

Take a peice of wire, strip both ends off a little bit. Pull the two wires off for the temp sending unit that the electric fans attach to. Stick the wire onto the wire that run to the electric fans to complete the circuit. Do your fans turn on now? If not their is something wrong with the fans or a fuse. This method is bypassing all relays and sending units temporarily.
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Old Jul 5, 2009 | 10:54 AM
  #8  
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From: sunny so cal.
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: Fans stopped working

oups forget it.
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