Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Electric fan gremlin

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Old Nov 23, 2006 | 11:32 AM
  #1  
sinjin89rs's Avatar
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Electric fan gremlin

Hi everyone--

Just noticed that my cooling fans were not coming on at all...Since this car was bought as a project (87 IROC 350 TPI), here is what I do know...When I bought the car over the summer, I was told that the previous owner had wired the fans (dual electric) to come on with the ignition, allowing it to run all the time. I did find a relay attached to the wiring coming from both fans..Could this be the culprit? Just trying to fix the obvious first..Thanks for any help...Ryan

p/s Car is A/C delete as well....

Last edited by sinjin89rs; Nov 23, 2006 at 11:38 AM. Reason: more info.
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Old Nov 28, 2006 | 05:00 PM
  #2  
Lucid's Avatar
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From: San Antonio, Tx
Car: 86 Camaro Z28/ 87 Camaro IROC Z28
Engine: 5.0L TPI LB9 / 5.0 TPI LB9 w/cam
Transmission: Built 700R4 with Transgo shift kit
Axle/Gears: 3.27 9 bolt Posi/ 2.73 10 bolt Posi
Yes check for burnt wires, fuses, and tap that relay on the body of the car. If the relay clicks its getting power its just sticking and wont close to allow the fans to come on. Also a bad socket connection could keep it from coming on.
You could probably remove the relay from the socket and hot wire it to see if the fans are working or not, but you need to know where all the wires go.

From the factory these cars normally had the fans come on by the ECM energizing the relay.
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Old Nov 28, 2006 | 08:12 PM
  #3  
Dels383TA's Avatar
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Joined: Nov 2006
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From: Moncton NB
Car: 84 Trans Am
Engine: 383 Stroker
Transmission: 5 Speed
Axle/Gears: Ford 9"(Moser),4:11s,locker,31splin
One option for you is to buy a fan control switch,Derale makes one part# is 16749,it is variable temp sensor,has wires for 2 fans,and comes with the relay.
I have this one on my car and it works very well.
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