Fan relay install question - Team Camaro Tech
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post #1 of 10 (permalink) Old Apr 23rd, 16, 06:54 PM Thread Starter
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Fan relay install question

I am 95% finished with my AAW complete auto harness install. The last big piece is installing the fan relay. I ordered the relay kit from AAW and the instructions aren't simple enough for me to understand apparently. In order for the relay to work, it says to connect it to the electric fan sending unit. I've looked on my engine and I don't see the sending unit installed so I guess I need to get one of those. Is there a preferred place to get one? I looked on rock auto and didn't find one. I'm also not 100% sure where to put it. I'll post pics of 2 places of where it might go if someone can tell me if it's good.


On another note, I have a connection coming from the alternator and not quite sure what connects to it. I have added a picture of this as well. Thanks in advance for any assistance. I've been trying to be very patient with this install. Let's just hope it all works haha!
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post #2 of 10 (permalink) Old Apr 23rd, 16, 10:54 PM Thread Starter
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Re: Fan relay install question

Apparently my alternator is a 1 wire alternator and does not require me to plug this extension in. If I do plug it in, I don't know if it will affect anything. The brown wire goes back to the fuse harness so I imagine that just goes to the dash. Please correct me if I'm wrong and let me know if I should just disconnect this extension all together.
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post #3 of 10 (permalink) Old Apr 24th, 16, 07:08 AM
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Re: Fan relay install question

1) you don't have an electrical sending unit for your temp sensor. That's a mechanical.

2) that pigtail allows your dummy light to work when connected.

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post #4 of 10 (permalink) Old Apr 24th, 16, 08:45 AM
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Re: Fan relay install question

I could be mistaken but I think that alternator is external regulator with a plug that is like this [ll]. the plug shown is for an internal regulated alternator.

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post #5 of 10 (permalink) Old Apr 24th, 16, 10:25 AM Thread Starter
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Re: Fan relay install question

I know I don't have the sending unit installed, if I do get one, where should I install it? Here is one that rick's Camaro sells. Will this work?
Camaro Electric Cooling Fan Temperature Sending Switch, 1967-1985
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post #6 of 10 (permalink) Old Apr 24th, 16, 10:53 AM
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Re: Fan relay install question

Quote:
Originally Posted by rico6983 View Post
I know I don't have the sending unit installed, if I do get one, where should I install it? Here is one that rick's Camaro sells. Will this work?
Camaro Electric Cooling Fan Temperature Sending Switch, 1967-1985
I would use something like this. It has adjustable temp range

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post #7 of 10 (permalink) Old Apr 24th, 16, 11:39 AM Thread Starter
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Re: Fan relay install question

My car is generally a weekend warrior for just driving around town. I don't plan to race or anything like that. I will look into getting an adjustable controller just to be on the safe side.
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post #8 of 10 (permalink) Old Apr 25th, 16, 12:15 AM
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Re: Fan relay install question

The 2 wires on the plug are for the voltage sensing wire and dash light. I personally would get a 3-wire internally regulated alternator and use those wires. This will allow your alternator to put out more power when the voltage drops. The head between 1 & 3 is generally where the sender for the temperature gauge goes and don't use Teflon tape on it. You can put the electric fan temperature sensor where the gauge sensor is now.

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post #9 of 10 (permalink) Old Apr 25th, 16, 05:48 AM
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Re: Fan relay install question

You can use this controller if you wan the threaded sender instead of the probe

Derale Performance Deluxe Adjustable Controllers with Pipe Threaded Probes 16749 - Free Shipping on Orders Over $99 at Summit Racing

You can use Teflon tape per the instructions
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post #10 of 10 (permalink) Old Apr 25th, 16, 06:15 AM Thread Starter
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Re: Fan relay install question

I started looking at the 10SI 3 wire alternators. I'm not sure what would be the best for me. I have a radio with alpine speakers and that's the only thing that would require a little more power. My battery has been dying a lot if I don't run the car often so maybe getting a new one is something I should have done a while ago. Any suggestions? Thanks for all the input.
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