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AC blowing warm and high pressure on low side

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Old Jul 3, 2012 | 06:37 PM
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Default AC blowing warm and high pressure on low side

I have a 2005 S type that the AC is blowing warm air and when I hooked up a gauge to recharge it the pressure on the low side was about 90. It gets a liitle cooler when the car is moving but warms up when the car stops. Anyone know where to start looking for the problem.
 
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Old Jul 3, 2012 | 06:59 PM
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Welcome to the forum!

You should really follow forum protocal and introduce yourself in the "New Member" section. By doing so you will access to much, much more information.

Also go to "UserCP" upper left hand corner and "Edit Signature", please add your vehicles details, like so many of us have. Thank you!



Have a look at this TSB BEFORE you spend alot of money!

JTB00183NAS1.pdf


Now if you are giong to replace the compressor here is another link with what you will be looking at!

https://www.jaguarforums.com/forum/s...ics-faq-55212/
 
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Old Jul 3, 2012 | 09:22 PM
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+1 on joycesjag... you have to check both the low and high side pressures. If your low side pressure is 90 while the compressor is running odds are your system is overcharged and needs to be serviced by a professional.
 
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Old Jul 4, 2012 | 10:08 AM
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Thanks Rick I just updated my signature and posted in the new member section. I did take it too a garage and the guy told me it was 1lb low and that the expanison valve was cloged and I need to run it to clear the clog. That does not sound right to me. I'm going to go pick up some gauges so I can check both pressures. How would I know if its the compressor spring valve or somthing else.
 
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Old Jul 4, 2012 | 11:13 AM
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Originally Posted by mbova
Thanks Rick I just updated my signature and posted in the new member section. I did take it too a garage and the guy told me it was 1lb low and that the expanison valve was cloged and I need to run it to clear the clog. That does not sound right to me. I'm going to go pick up some gauges so I can check both pressures. How would I know if its the compressor spring valve or somthing else.
From what I understand if it's the compressor spring valve the symptom you will see is warm or cool air blowing through the vents at idle and then as you drive (engine rpm's increase) the air will blow cold.
 
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Old Jul 4, 2012 | 11:34 AM
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Thanks abonano, that sounds like my problem. If i'm going to change the compressor spring do you think it would be better to just change the compressor.
 
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Old Jul 4, 2012 | 01:21 PM
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I would first check out the TSB joycesjag included in his response regarding your original post. I would attempt that first before investing $$$ in a new compressor. It's worth a try and swapping out the compressor spring has worked successfully for other forum members. Good Luck and keep us posted.
 
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Old Jul 4, 2012 | 01:49 PM
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The system only takes 1.6 pounds, expansion valve clogged???whatever, the only thing that would plug the x valve is drier desicant bag coming apart and dumping pellets in the system youll never clear that or any other clog. The high side should read 150% of ambient temp in front of condensor as a general rule of thumb. I prefer to evacuate system to see whats in it and charge with correct weight of freon.
 
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Old Jul 6, 2012 | 02:04 PM
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Thanks guys i picked up a vacume pump today and I'm going to do the valve spring tomorrow. I will let you know how it works out.
 
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Old Jul 6, 2012 | 04:16 PM
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I did the spring fix on my 03 STR, no way i would try to get that compressor out, it is tight down there but two bolts flip the spring around the front of the valve and the car is a freezer inside,
 
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Old Jul 6, 2012 | 10:58 PM
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Originally Posted by 93XJR-S
I did the spring fix on my 03 STR, no way i would try to get that compressor out, it is tight down there but two bolts flip the spring around the front of the valve and the car is a freezer inside,
Interesting the TSB states, V6 S Types only.
 
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Old Jan 6, 2013 | 04:26 PM
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Originally Posted by joycesjag
Interesting the TSB states, V6 S Types only.
I see that this person has a v8 in his garage, did this work for a v8? I have a v8 with the same issue.
 
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Old Jan 6, 2013 | 04:41 PM
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Originally Posted by 93XJR-S
I did the spring fix on my 03 STR, no way i would try to get that compressor out, it is tight down there but two bolts flip the spring around the front of the valve and the car is a freezer inside,
This worked on your V8? I have a V8 with the same problem, someone on this forum told me the TSB doesnt apply to my V8.
 
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Old Jan 6, 2013 | 04:41 PM
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This looks like the 2nd time you've asked and the answer is still that it does not apply to your 2000 V8. BTW see below:
 
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Old Jan 6, 2013 | 04:50 PM
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Please read the question, it is being directed to the person who has used this method on his V8, BTW, I put the description of my vehicle in all my posts...And in my signature, as well as my profile when I set it up.
 
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Old Jan 6, 2013 | 05:31 PM
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The description WAS NOT THERE. That's why I asked for it.
 
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Old Jan 6, 2013 | 06:09 PM
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forget it, seems like you have a chip on your shoulder, I am much too busy to deal with the forum police. Thanks for the warm welcoming to the Forum.
 
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Old Jan 6, 2013 | 06:27 PM
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So your being in the wrong means I have the chip. Weird. You sure are new here.
 
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Old Jan 6, 2013 | 06:29 PM
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Originally Posted by JagV8
So your being in the wrong means I have the chip. Weird. You sure are new here.
Easy on the freshman there Jag..... LOL



They'll learn...
 
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Old Jan 6, 2013 | 07:53 PM
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Listen, my understanding of this forum is to help one another, not try to get the last word. If you read my post, I was addressing someone else other than you. I asked them, if they used this procedure on a V8, why dont we start with you telling me what the difference is between the two compressors? I am a very logical person, I couldn't see a V6 having a completely different compressor for the A/C than the V8, unless you have a logical explanation. I don't know how old you are but the bickering has to stop. This is a public forum, newbee or not.


Originally Posted by JagV8
So your being in the wrong means I have the chip. Weird. You sure are new here.
 
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