S2000 Under The Hood S2000 Technical and Mechanical discussions.

possible A/C prob

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Old Jun 5, 2004 | 08:03 PM
  #11  
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The 50 deg vent temp isn't out of range when the door is 1/2 open. Unless the doors are closed and windows and top up, the vent temp won't be in the 40 deg range.
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Old Jun 6, 2004 | 12:53 PM
  #12  
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[size=1][b]Generally the compressor should cycle even at idle, although it may be running more often than not.
You use the A/C in San Diego? Did it reach 70 today?

(Do you ever raise the top?)


He lives in South Florida. Warm. Wet.
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Old Jun 6, 2004 | 06:52 PM
  #13  
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[QUOTE]Originally posted by Gregg Lee
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Old Jun 7, 2004 | 04:12 AM
  #14  
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Sorry BDO, I didn't realize this post was still going on. I think my A/C is alright, it still isn't as cold as it seemed to be last summer and definitely not as cold as other vehicles.

I tested the vent temp a few different times
1) 900 RPM (idle) in the sun (88F / 80%RH) and the vent temp dropped to between 55F

2) Driving in the sun (88F / 80%RH) and the vent temp would fluctuate between 50-60.

3) Night idle (76F / 70%RH) and the vent temp dropped to 50-55F

I did a pressure check and the low pressure side is at 44PSI (which according to the gauge is fully charged). My concern happened when I rode in friends cars and took my vent thermometer and they dropped and held between 40 and 45F on a day with similar temp / humidity.

I was talking with some friends and one mentioned that the A/C may have gotten moisture or air in the line and the dryer might need replaced. If that is the case, would that be covered under the Honda Care extended warranty? Also should I take my AEM intake off and put it back to stock if I do take it to Honda?
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Old Jun 7, 2004 | 04:22 AM
  #15  
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Unless the system was open to the atmosphere, the drier will not have absorbed moisture. Sounds like you have a small leak.
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Old Jun 8, 2004 | 11:31 PM
  #16  
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Hmmm. 50-55 degrees does sound kinda weak. I think vent temps around 40 should be reasonable, especially for your night test.

I doubt moisture is the issue. As Slows2k said, moisture won't get into the system unless it's been opened or completely discharged (a bad leak, for example). Otherwise it's a closed system always under pressure; things don't generally get in.

Out of curiosity, did you get a look at the high side pressure range?

In the end, if you feel it's ok then it's ok - it's your car. Worst case scenario is that it eventually gets worse and at that point you decide it's not ok any more. But if it was my car and 50F was the best it was doing at the vent in your #3 test, I know I'd be whining at someone.

As for your warrany questions, I can't really answer since I don't have any experience there.
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Old Jun 9, 2004 | 04:27 AM
  #17  
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Nope, didn't get the high pressure side.

Well I think I'll take a few hours and put my car back to stock this weekend. Then take it in this week to get it looked at. Hopefully it'll be a component problem where it'll get it fixed under warranty
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Old Jun 9, 2004 | 07:50 PM
  #18  
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Originally posted by Slows2k
Xviper, I don't think the Canadian cars are wired any different, But the US spec cars run both fans with the AC and both fans when the fan switch in the radiatior is closed.
While I've not checked my fan operation, the "book" indicates this is the case.

There are two relays, fed by different fuses, one for each fan motor. But both relay coils are wired in parallel and controlled by either 1) the radiator temp switch (>199
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Old Jun 9, 2004 | 08:27 PM
  #19  
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We really are grasping for an answer at what could be the problem. A faulty expansion valve, blocked air flow to the condensor, faulty fan controls, the list goes on.

BTW, I've never had a honda evaporator ice in any model car in the past 5 years, And have seen plenty of low systems. It's still a possiblity, bu the AC system is complicated enough to daignose and repair when you are working on the car, doing the same online makes the process even more difficult.

I have said in previous posts about the AC system, If you don't have the training or the correct equipment, do not attempt a repair. Leave it to a certified and trained professional, with the modern recyling/recovery/charging equipment.
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Old Jun 9, 2004 | 09:41 PM
  #20  
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Originally posted by Slows2k
I have said in previous posts about the AC system, If you don't have the training or the correct equipment, do not attempt a repair. Leave it to a certified and trained professional, with the modern recyling/recovery/charging equipment.

I couldn't agree more. I cringe when I hear "I'll just put some freon in it and it'll be cold again."
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