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Radiator fan help.

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Old Aug 22, 2012 | 12:20 PM
  #1  
priest1981's Avatar
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From: Sierra Vista, Arizona
Car: 86 IROC-Z
Engine: LB9
Transmission: 700r4
Axle/Gears: limited slip disc
Radiator fan help.

Where does the ECM get the ground for the fan relay circuit? It's an 86 LB9.

Last edited by priest1981; Aug 22, 2012 at 01:41 PM. Reason: ...
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Old Aug 27, 2012 | 07:56 AM
  #2  
priest1981's Avatar
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Joined: Jan 2005
Posts: 228
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From: Sierra Vista, Arizona
Car: 86 IROC-Z
Engine: LB9
Transmission: 700r4
Axle/Gears: limited slip disc
Re: Radiator fan help.

So I found the relay control wire from the ECM was open and the relay was bad.
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Old Aug 27, 2012 | 09:10 AM
  #3  
ibmtech's Avatar
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From: Glen Park, NY
Car: 1987 IROC-Z
Engine: TPIS II Supercharged w/Nitrous
Transmission: 700R4 Probuilt
Axle/Gears: 3:73 Richmond 12 Bolt
Re: Radiator fan help.

If I am not mistaken, I think the ECM wire is the ground..
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