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A/C pressure switch location..

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Old Nov 12, 2004 | 03:32 PM
  #1  
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A/C pressure switch location..

I have recently removed bunch or wires after getting rid of my A/C and my fan keeps staying on way below fan on temps..

I read it somewhere that it has something to do with the pressure switch being open and computer thinks the a/c is ON.

I have a single fan setup..

PS. Where is that A/C pressure switch?? or where is it hooked up to?

Thanks
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Old Nov 12, 2004 | 04:33 PM
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Look at the refrigerant hard lines along the right subframe rail, just inside the spring tower. There should be a two-wire connector located there.
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Old Nov 12, 2004 | 10:17 PM
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I got it figured out. I disable the A/C pressure switch in the PROM and the fan is one more time working the right way.
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Old Nov 12, 2004 | 10:32 PM
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Originally posted by DANIELEK
I got it figured out. I disable the A/C pressure switch in the PROM and the fan is one more time working the right way.
Ahh, eprom burning to the rescue...and you don't even have to get dirty hands. I wonder if there is "secret way" to control BOTH fans in 165 like there is on the 730. There probably is, just hasn't been found yet.
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Old Nov 13, 2004 | 03:04 PM
  #5  
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From: Alberta
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Originally posted by Glenn91L98GTA
Ahh, eprom burning to the rescue...and you don't even have to get dirty hands. I wonder if there is "secret way" to control BOTH fans in 165 like there is on the 730. There probably is, just hasn't been found yet.
I was amazed myself that it worked perfectly. It took me less than a 2 minutes to modify and burn a chip and it would probably take me hours trying to locate that stupid pressure switch or remaining wires and fixing it that way..
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Old Nov 14, 2004 | 09:11 PM
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Car: 2003 F150, 87 IrocZ28, 90 Camaro RS
Engine: 87 has 383 stroker, 90 has stock 305
Transmission: 87 has borg warner WC T-5, 90 has 700R4
the a/c high pressure switch is always on the high pressure a/c line.
Why did you take your a/c out?
You only get a slight loss of power when you have the a/c compressor on.

My fans work the way they should, but I also but a manual switch in there too for good measure.
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Old Nov 15, 2004 | 10:45 AM
  #7  
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From: Alberta
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I took it out because where i live there i only like 3 weeks of really hot weater in the summer and the rest of the year is much cooler, plus little bit of a weight loss, and much more space to work under the hood.
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Old Nov 15, 2004 | 12:18 PM
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Car: 2003 F150, 87 IrocZ28, 90 Camaro RS
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Transmission: 87 has borg warner WC T-5, 90 has 700R4
Makes sense man. It's hot here in mass for about 2 months in the summer. Sorry if I sounded like a jerk.
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Old Nov 15, 2004 | 03:03 PM
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Originally posted by 4BoltMain
Makes sense man. It's hot here in mass for about 2 months in the summer. Sorry if I sounded like a jerk.
No worries
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Old Nov 15, 2004 | 05:27 PM
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Originally posted by DANIELEK
I took it out because where i live there i only like 3 weeks of really hot weater in the summer and the rest of the year is much cooler, plus little bit of a weight loss, and much more space to work under the hood.
I guess you must be at Edmonton (or north)...but yeah, A/C is only a "short need" event.

I've been tempted also to remove mine even though I am in Kamloops and it's "a/c weather from as early as mid-May to as late as mid-Sept". I just want to "clean up" my underhood and be able to get at things easily.

The car is no longer a "daily driver" and I have other cars that have a/c if comfort is a concern.
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Old Nov 15, 2004 | 07:36 PM
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From: Alberta
Car: Red Rooster
Engine: 305 TPI
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Originally posted by Glenn91L98GTA
I guess you must be at Edmonton (or north)...but yeah, A/C is only a "short need" event.

I've been tempted also to remove mine even though I am in Kamloops and it's "a/c weather from as early as mid-May to as late as mid-Sept". I just want to "clean up" my underhood and be able to get at things easily.

The car is no longer a "daily driver" and I have other cars that have a/c if comfort is a concern.
I would do it Glenn. The difference under the hood is unbelievable. We don't live in Calofornia so I would do it. Mind you you get nice and hot summer in Kamloops.

I also got rid of the all emission crap including all of the air pump components. That cleaned up my engine bay even better..
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