A/C Air Conditioning Blowing Hot / Warm Air - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 05-29-2007
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A/C Air Conditioning Blowing Hot / Warm Air

I got an 03 Ranger and have never had any problems with it. I've had the EATC mod for at least 2 years..

Just the other day it was hot out and raining so I decided to kick on my AC. It was nothing but hot air coming out.

Any ideas on what to check?

Thanks much.
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  #2  
Old 05-29-2007
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Check your freon. Also make sure the compresser is engaging.
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  #3  
Old 05-29-2007
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I'm a mechanical retard.. How do I do each of those?

Thanks!
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  #4  
Old 06-03-2007
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I am trying to check the refrigerant level at the low side service port... This is directly in front of the power steering reservoir, correct?

If so, I can't get the gauge I bought to fit over the connector!?

Any ideas?

Thanks!
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  #5  
Old 06-03-2007
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I didn't see an e-fan in your list of mods...but if you have one, make sure its running. My e-fan blew a fuse and I wasn't aware of it...it was blowing hot air through the AC.
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  #6  
Old 06-03-2007
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No, I didn't do that mod..

What's happening is the compressor is clicking on, running for a second, and then shutting right off. It just keeps doing that (when the AC is turned on).

This company here has videos and "how-to's" of using their product. http://id-usa.com/how_to_videos.asp

In the video it said that if your compressor is doing that a good chance is you are low on refridgerant and they sell refill / recharge units..
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  #7  
Old 06-03-2007
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My compressor does that all the time. It always has and it blows cold air no problem. I'm pretty sure the compressor starting and stopping is normal.
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  #8  
Old 06-03-2007
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Well according to those videos it is normal for it to do that in 60 second intervals or so but not constantly for seconds at a time.. I'm not sure..
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Old 06-03-2007
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compressor cycling is normal.

if it is low on R134a then u have a leak. u can add all the refridgerant u want but it still has a leak. u need to isolate and repair the leak.

few simple things to check:
- Condensor is clean of debris (should be in front of the radiator)
- Vent temps, an el cheapo meat thermometer in the vent (close the others) and see what it reads. should be around 42-45 degrees.
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Old 06-03-2007
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Quote:
Originally Posted by optikal illushun
compressor cycling is normal.

if it is low on R134a then u have a leak. u can add all the refridgerant u want but it still has a leak. u need to isolate and repair the leak.

few simple things to check:
- Condensor is clean of debris (should be in front of the radiator)
- Vent temps, an el cheapo meat thermometer in the vent (close the others) and see what it reads. should be around 42-45 degrees.
All else fails have a dealer check it, pricey but done right
When my truck was new and i ran max a/c the temp in the vent was about 27*, also had condensation running down the vents and down the radio bezel and to the floor, dealer said it was normal and wish his did that, finally cleared up some to work the way its supposed to, never did figure out why it was so cold
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  #11  
Old 06-04-2007
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Have you scaned for EATC codes using the Self-Test? Worth a shot. (Press and hold OFF, press FLOOR while holding OFF, and then release both buttons and press AUTOMATIC within 2 seconds).
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  #12  
Old 06-04-2007
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Nothing happens when it do that. It just goes to 75*.
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  #13  
Old 06-05-2007
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More than likely you are low on refrigerant and if your compressor is short cycling you've not lost very much. Low refrigerant pressure will cause the compressor clutch to cycle on the low pressure switch. What I would do is add refrigerant as needed then wait a while before taking on the task of finding the leak, if you can. A small leak will be very difficult to locate. You can purchase R134A with a tracer in it that will make the leak visible. Also, anywhere there is a refrigerant leak there will be oil present. Oil circulates with the refrigerant and will be deposited around the area of the leak.

Swimmer
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  #14  
Old 06-05-2007
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Sounds like a blend door issue to me....http://www.mightyautoparts.com/pdf/articles/otl1200.pdf
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  #15  
Old 06-06-2007
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Refrigerant checked out OK last night..

Earl, I can't remember.. Is the blend door actuator a part that is replaced in the EATC swap?

Do you know how I can check it? The article isn't exactly a how-to but you're right.. It does sound like it may be it!


EDIT - Just re-read John's how to.. That is a part in the EATC install. I could have sworn I bought it brand new from Ford.. Yup just checked. $43.32 on 8/9/04. Man, that didn't last long for a new part (if that is indeed it).

Last edited by tbird2340; 06-06-2007 at 01:03 PM.
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  #16  
Old 06-06-2007
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Should be able to see what it's doing from the glovebox hole, no?

Heck, you managed to put it in, you'll figure it out, lol.
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  #17  
Old 06-06-2007
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LOL!! True.. It's just been so long.

Hopefully be able to look tonight.. Thanks for the help.
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  #18  
Old 06-16-2007
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It turned out it was just low on refrigerant!! Giddyup!
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  #19  
Old 06-17-2007
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then you have a leak...
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  #20  
Old 06-18-2007
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In my B4000 the low-side service port is on the passenger side of the engine.

It will all make sense when you see that the compressed airtank is right there..
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