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

Where's my cooling fan relay?

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Old Apr 26, 2001 | 09:06 PM
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Belker's Avatar
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From: Morgantown, WV
Where's my cooling fan relay?

I have a 1991 Camaro RS 3.1 MPFI, where is my engine cooling fan relay?

Does anyone have a photo or a diagram?

Also, is it correct that grounding the green wire with a white stripe will turn on the fan?
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Old Apr 27, 2001 | 03:51 PM
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From: Morgantown, WV
... I thought alot of people would know the answer to this one .... anyone?
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Old Apr 27, 2001 | 10:32 PM
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
The fan relay is on the driver's side firewall. The fuel pump relay is there too. I dont know which is which on a V6.


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Old Apr 28, 2001 | 11:18 PM
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From: Morgantown, WV
I figured it out. There are three identical large relays on the driver's side firewall. Only one of those has green/white, tan/white, red, & black/red wires. This is the fan relay. Also the red & red/back wires are much larger than any of the other wires on any of the relays. On my car the fan relay is the middle one.

Anyway, I spliced into the green/white wire and connected it to ground via a toggle switch. Now, anytime I'm stuck in traffic, I can flip the switch to turn on my radiator fan, and not worry about my engine getting too hot.
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