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Joined: Feb 2006
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I am having trouble with my A/C working. I can here also sorts of noises of components working when I turn the A/C on but it only blows out hot air. I have a 96 contour ATX Zetec. I had someone try and add r134 to it and he said it would not take it. He did not have a pressure gauge on it when he tried to add it. I am not familar with the procedure and thought he knew what he was doing but I am having my doubts. I was wondering if I should go ahead and try some myself? How do I test the compressor or the compressor clutch. Any suggestions would be greatly appreciated because I have spent countless hours searching fopr little answers and hope this great site can get my problems solved AGAIN!!
Every car should have a website like this, I love it!!
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For $20 you can get the refrigerant with gauge from Autozone or Advance. Instructons are on the can on how to use it. Basically, remove the cap on the refrigerant line near the battery side and plug it in. Note this is only if you suspect that your warm air is due to low refrigerant.
Edit. Nate S 3.0
The cap is to the left of the yellow clip for the hood rod.
Last edited by Tony2005; 03/11/06 02:41 AM.
"Always do the cheap and easy ones first."
1996 V6 ATX 96K miles
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Joined: Mar 2006
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For one R134 doesnt just go away, if your system needs a recharge you have a leak, it may be a small one but you have a leak.
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Joined: Feb 2006
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The person who tried to put in r134 said that the compressor clutch was not kicking on to take the r134. Does this sound right? How do I test the compressor or compressor clutch? I have searched but found very little.
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Joined: Mar 2006
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Well for one you dont add the R134 to the compressor, you add using the service ports.
Secondly lots of things can cause the compressor to go bad, reed valves inside will fail, the bearings on the pullies lock up.
One way to find problems using is an AC system is very easy an accurate and I know you have the tool, infact your using it right now. Your hands. Hot/warm/colc/cold. Line from the compressor to condensor should be hot, line from condensor to reciever/drier should be warm, line from receiver/drier to evaportor, cold, and evap. to compressor should be cool.
Theres your place to start, if you touch the line from the compressor to condensor and its cold, or cool, your compressor is shot to crap.
hope that helps
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http://www.ackits.com/ Go to their forums. Ask questions there, You'll get a quick reply. Usually if the compressor clutch isn't engageing means the system is really low on 134A. You have a leak somewhere. If you just want to add some 134A, you will need to disconnect the connector to the accumulator and put a jumper wire in the harness connector that plugs into the accumulator. This should make the compressor clutch kick in so you can add the 134A. If you are this low though, the oil in the system also goes away and you could have a dammaged compressor.
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Joined: Mar 2006
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That is true to, if the high side or low pressure is to low the computer wont allow the compressor to turn on. If the compressor doesnt have any refridgent in it and runs, it will be junk.
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Is the accumulator located between the battery and the driver side headlight? What is the switch I jump, the electrical plug? I was also wondering if the compressor was located near the bottom of the car? Are the hoses with the high and low pressure testers where I should be feeling for hot and cold lines? I did not find any hot lines but the one coming up from bottom on the passenger side and into the front of the radiator was a little warmer than the rest. I also thought I could here some intermitten clicking off and on from what I assume is the compressor, does this mean it is cycling? How high of a pressure gauge do I need to test the system. I have read numbers from 24 to 400 psi, will the pressure gauge that comes with the r134 kit be good enough to test the high and low pressure?
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Originally posted by hoger29:
Is the accumulator located between the battery and the driver side headlight? What is the switch I jump, the electrical plug? I was also wondering if the compressor was located near the bottom of the car? Are the hoses with the high and low pressure testers where I should be feeling for hot and cold lines? I did not find any hot lines but the one coming up from bottom on the passenger side and into the front of the radiator was a little warmer than the rest. I also thought I could here some intermitten clicking off and on from what I assume is the compressor, does this mean it is cycling? How high of a pressure gauge do I need to test the system. I have read numbers from 24 to 400 psi, will the pressure gauge that comes with the r134 kit be good enough to test the high and low pressure?
I dont know what the spec is for the Contour, but normally low side 20-40psi, and high side 150-300 psi. Again every car is different, I no longer own a Contour so I dont know.
The accumlator is a big gray metal tube thing, located between the evaportor and the compressor.
If the compressor is cycling on and off, almost all of the time it is low on refridgent.
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My compressor is cycling on and off every few seconds. I bought one of those recharge cans with the pressure gauge attached, because I assumed it was low. When I hook up the line, the reading varies from about 25 to 45 (compressor engages at 25, shuts off at 45... this happens every few seconds). I don't want to add any refrigerant, since the pressure is where it should be. What should I check next?
E0 #36
'95 Ranger
'82 Honda CX500
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