A/C blows cold under throttle and gets warm off throttle??? Why?
09-04-2009, 04:02 PM
#1
A/C blows cold under throttle and gets warm off throttle??? Why? Im am baffled on this one guys. Checked the pressure gauge with a pos from advance and its holding pressure (or has freon in it) no leaking. Im guessing its the clutch then maybe?
Anyone have similar occurrences?
Anyone have similar occurrences?
09-05-2009, 12:59 AM
#7
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The reason it gets cold with engine rpm is because your putting more load on the AC compressor, at idle, temperatures will always rise. Your AC system is meant to be used while driving, not while in park. if temperatures are extreme hot and cold, there may be something else wrong, but it is not uncommon for a system to do what you are describing.
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09-05-2009, 07:38 AM
#9
The reason it gets cold with engine rpm is because your putting more load on the AC compressor, at idle, temperatures will always rise. Your AC system is meant to be used while driving, not while in park. if temperatures are extreme hot and cold, there may be something else wrong, but it is not uncommon for a system to do what you are describing.
The clutch is on but the air is not cold at idle anymore, the air freon in the system with no leaks. Sometimes the clutch isn't on and sometimes it is on.
And when I say at idle its warm, I mean it feel like the heat is on. The whole thing was working perfectly fine the day before.
09-05-2009, 12:52 PM
#10
The reason it gets cold with engine rpm is because your putting more load on the AC compressor, at idle, temperatures will always rise. Your AC system is meant to be used while driving, not while in park. if temperatures are extreme hot and cold, there may be something else wrong, but it is not uncommon for a system to do what you are describing.
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09-05-2009, 12:54 PM
#11
Its never done this, the ac was always cold at idle, crusing and WOT. This it NOT normal for my car.
The clutch is on but the air is not cold at idle anymore, the air freon in the system with no leaks. Sometimes the clutch isn't on and sometimes it is on.
And when I say at idle its warm, I mean it feel like the heat is on. The whole thing was working perfectly fine the day before.
The clutch is on but the air is not cold at idle anymore, the air freon in the system with no leaks. Sometimes the clutch isn't on and sometimes it is on.
And when I say at idle its warm, I mean it feel like the heat is on. The whole thing was working perfectly fine the day before.
I would stop by any A/C shop, I don't see why they would charge you (not much anyway) to tell you if the clutch is coming on and staying on. They can probably run that jumper I told you about to see if the pressure sensor is the issue.
Because if it is the pressure sensor and that sensor is acting up and shutting off the clutch engagment....it will blow warm for 2 seconds after the clutch disengages, it doesn't take long to get warm air coming through. Its like when I forget to turn my A/C off and I do a hard run....my air will start to blow warm 2 seconds after I get on the throttle from the automatic clutch disengagment from the PCM. Then 2 seconds after I let off the pedal....cold air comes through again.
What part of Florida are you in? I know a great A/C guy that will probably do that check for nothing...in Lauderdale.
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09-06-2009, 02:14 AM
#12
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When I come to a stop my A/C keeps blowing cold, even if I sit there for 5 minutes. It certainly gets colder if I'm cruising steadily down the road because the condensor is getting much more air-flow through it, but mine never blows warm when I stop or slow down. Its always very cold.
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yes than there is a problem, I said that temperatures will rise at idle, fact. not blow HEAT!
09-06-2009, 08:06 AM
#14
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Keep in mind everytime you hook up the guages your loosing anywhere between 1-4oz depending on how you do it and the camaros have orfice as a metering device and that typeis know in the refrigeration world as CRITICAL CHARGE. So i recomend using a temperature probe before guages ALWAYS. So my first questions would be are your radiator fans running(which ones) air temps coming out the vents idle and driving, and what was the pressures when u had the guages on and how many times you hooked them up? Im not a car a/c expert but i work on refrigeration and understand it decent so i understand most of car a/c systems so if i say anything wrong let me know.
09-06-2009, 08:31 AM
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Keep in mind everytime you hook up the guages your loosing anywhere between 1-4oz depending on how you do it and the camaros have orfice as a metering device and that typeis know in the refrigeration world as CRITICAL CHARGE. So i recomend using a temperature probe before guages ALWAYS. So my first questions would be are your radiator fans running(which ones) air temps coming out the vents idle and driving, and what was the pressures when u had the guages on and how many times you hooked them up? Im not a car a/c expert but i work on refrigeration and understand it decent so i understand most of car a/c systems so if i say anything wrong let me know.
09-06-2009, 11:54 AM
#16
Keep in mind everytime you hook up the guages your loosing anywhere between 1-4oz depending on how you do it and the camaros have orfice as a metering device and that typeis know in the refrigeration world as CRITICAL CHARGE. So i recomend using a temperature probe before guages ALWAYS. So my first questions would be are your radiator fans running(which ones) air temps coming out the vents idle and driving, and what was the pressures when u had the guages on and how many times you hooked them up? Im not a car a/c expert but i work on refrigeration and understand it decent so i understand most of car a/c systems so if i say anything wrong let me know.
Hooked the gauge up twice, at idle it read 55psi.
