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Car cool -> A/C cool ... car hot -> A/C hot
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mactube
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Sep 8, 2012, 2:05 PM
Post #1 of 32
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Car cool -> A/C cool ... car hot -> A/C hot
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Hi, I have a problem the I don not know the answer to..
When I turn my car ( 2001 Chrysler Sebring 2.7) in the morning and turn on the A/C right away.. the A/C will blow cold air within seconds and stay on until i turn the engine off.
When I then get back in the car and turn on the A/C it will only blow warm air. Obviously there is not a leak in the system and compressor seams to be ok to ( even though the compressor is pretty loud when A/C is turned on) .
Doe's somebody know what that could be ?
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Hammer Time
Ultimate Carjunky
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Sep 8, 2012, 2:33 PM
Post #2 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Your first step is to determine if the compressor is still running when the A/C quits working.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mactube
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Sep 9, 2012, 3:50 PM
Post #3 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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ok @Hammer Time makes sense... thought I'm still hearing it when it starts blowing hot air.. but I actually never got out of the car and opened the hood when the hot air kicks in..
will be back on here asap..
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mactube
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Sep 10, 2012, 3:19 PM
Post #4 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Ok, so when it starts blowing hot air, the compressor is off.
So I guess the compressor is broken !?
But why would the A/C ( Compressor) come on in the Morning when the Engine is cold ?
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Hammer Time
Ultimate Carjunky
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Sep 10, 2012, 3:33 PM
Post #5 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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No, that doesn't necessarily mean the compressor is bad. It proves it is an electrical issue but there are dozens of possible causes and it needs to be troubleshooted when the failure is present. The first step will be to determine if the compressor is still receiving power when it goes off.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mactube
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Sep 10, 2012, 5:46 PM
Post #7 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Ok, looks like I can't isolate the problem by my self so I will have to give it to a shop to trouble shoot it !? If it's an electrical error ..
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mactube
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Sep 11, 2012, 4:24 AM
Post #8 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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sound a little bit like metal on metal .. like it needs oil ( its not very loud but not a smooth sound..
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Discretesignals
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Sep 11, 2012, 5:06 AM
Post #9 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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You might want to take the compressor off and see if there is any oil in it. It might be too late for the compressor. If the compressor is knocking, it might be on the verge of coming apart. If the clutch gap is too wide, the field coil won't be able to pull the clutch plate. Might be worse when it gets hot because the electrical resistance in the field coil goes up. I'd worry about the noise first and the electrical problem last.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Tom Greenleaf
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Sep 11, 2012, 5:47 AM
Post #10 of 32
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? Metal on metal noise? Only with A/C use stated up top but not the typical failing compressor noise to me. The extra load on anything on the belt could be misleading for the source of that noise. Can anything odd be observed? If compressor itself it's not a good sign,
T
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Hammer Time
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Sep 11, 2012, 8:04 AM
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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No, I don't recommend taking the compressor off. not only is it dangerous, but you would open a can of worms that you can't deal with. Have it diagnosed professionally.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
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Sep 11, 2012, 8:16 PM
Post #12 of 32
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I forgot this is probably a DIY noob. HT is right. If you don't have the tooling and experience with working on ac, you should take it in.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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mactube
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Sep 12, 2012, 4:11 AM
Post #13 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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@Discretesignals this might get a little to technical for me..
it's very much possible that the oil is low in inside the compressor ... that's how it sounds like.
So if the compressor will be taking off to top off the oil, I'm assuming I'm loosing all the freon correct ?
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mactube
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Sep 12, 2012, 4:15 AM
Post #14 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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@Tom Greenleaf nothing else can be observed except that the a/c really comes on every morning when the engine is cold and then when the engine gets hot the a/c will shot off.
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Tom Greenleaf
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Sep 12, 2012, 4:35 AM
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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You don't just "top off" oil for A/C and yes the charge of refrigerant (freon) would be recovered and best weighed how much came out. Model year 2001 if untouched since new would have normally lost some refrigerant which varies from insignificant to about total loss or the car could have already needed something along the way.
There are a lot a variables to cause this. I suggest to take it for professional diagnosis to really find out if this is a simple issue/problem or a more involved repair is needed.
A/C is not very DIY friendly and in fact VERY costly when wrong things are done,
T
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Discretesignals
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Sep 12, 2012, 4:53 AM
Post #16 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Tom's right. There are many variables to this. The noise could be something outside the compressor. If the compressor itself is making noise, it can knock from lack of oiling. Lack of oiling could be from low oil in the system from a leak or not enough refrigerant to move the oil around. A bad reed valve, high side pressure too high, or a mechanical problem in the compressor could cause that symptom too. You really want to determine why the compressor is noisy before it grenades if it hasn't already started coming apart. I would be more worried about determining the reason for the noise than the electrical problem at this point.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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mactube
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Sep 13, 2012, 10:04 PM
Post #17 of 32
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@Tom Greenleaf and @Discretesignals
since it's expected to be an electrical problem.
I'm assuming this will be inside the compressor not on the wireing of the system. So I tend to just buy a used compressor for 80 bucks . Most places I have been to charge around the same just to get a diagnostic ( which will later be applies to the repair costs which could be in the hundreds... What to you guys think?
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Tom Greenleaf
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Sep 14, 2012, 3:19 AM
Post #19 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Used - NO! Not even remanufactured! To save a buck with likely failure of used you'll spend many times that to correct. Used compressors are handy for when the assembly (compressor and clutch together) is needed for the belt system with it just being a dummy pulley again and forget operational A/C forever for that vehicle,
T
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Hammer Time
Ultimate Carjunky
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Sep 14, 2012, 3:22 AM
Post #20 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Nobody yet even has the slightest indication that this problem is even being caused by the compressor. The idea of changing a compressor simply to avoid and actual diagnostic is just ridiculous.
The evacuate and recharge alone would cost more than the diagnostic and could actually make the issue much worse.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Sep 14, 2012, 3:23 AM)
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mactube
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Jul 12, 2013, 9:42 PM
Post #21 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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Thanks @Discetesignals.. I'm replaying here because I had problems to find the regular post option..
Now , that I have recovered my old post and still have the same problem .. I would be so happy if every body who was involved in the discussion would join again..
Like I said, I still have the same problems with my 2001 Chrysler Sebering , , except for now I can exclude a compressor problem.. since I got it exchanged .. Now.. Sometimes it comes on and sometime it doesn't.
I have been to several shops and Mechanics most of them tell me they can't help me I have to go to an A/C specialist or to the Chrysler Dealer Ship. I have not spent quite some money and definitely don't want to go to the Chrysler Dealer Ships because they charge 150 bucks just for the diagnosis. The car error code reader says : Blend Door Shorted to the ground . So I believe it's an electrical problem. Does somebody have a suggestion !??
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Discretesignals
Ultimate Carjunky
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Jul 13, 2013, 7:45 AM
Post #23 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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I agree with HT. If possible, pinch off a heater hose and see if your problem goes away. That will tell you if the blend door has some sort of issue.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 13, 2013, 7:45 AM)
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mactube
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Jul 13, 2013, 11:06 AM
Post #24 of 32
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Thx @Hammer Time and @Discretesignals will do and be back on here shortly.
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mactube
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Jul 13, 2013, 2:35 PM
Post #25 of 32
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Re: Car cool -> A/C cool ... car hot -> A/C hot
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We are talking about the heater hose on the compressor right !? To pinch off the heater hose from the compressor is kind of hard ( to reach ) and the hose are very tough.
But I don't think its the blend door ( even though thats what the error says) because when the AC is not working, the compressor stopped ( metal part on a/c - cold hose is not cold like it is when the AC is working) , so since that's the same problem I had before , I doubt that it's the acctual compressor ( unless the used one I put in there has coincidenly the same problem)
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