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Old Jun 7, 2004 | 10:33 AM
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Default AC compressor help

i'm so f***in pissed off at my accord, seems like every other day something else goes wrong with it. I need to know what you guys think. turn on AC, no cold air, check system freon present, check AC relays, they both work. the one thing i did notice is when i turn on the AC the pressure in the system will drop to zero. now it doesn't, please tell me my compressor is broken so i can kick it, and get a new one. thanks
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Old Jun 7, 2004 | 11:51 AM
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a/c never worked that well in accords, see if u can get a compressor or condensor from a camry and modify it to fit, that would be tite.
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Old Jun 7, 2004 | 12:16 PM
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a/c never worked that well in accords, see if u can get a compressor or condensor from a camry and modify it to fit, that would be tite.
:bs: Accord a/c works fine, My 93 blows 39 degrees f all day long on 100 degree days.
Besides Toyota and Honda share suppliers for compressors anyway and chances are they are the same company. (ND, Sanden)

Sounds to me like it's leaking somewhere and you have low pressure in the system, What year accord? Is the compressor coming on?
I'm assuming you have pressure gauges. What pressures do you have with the compressor off?
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Old Jun 7, 2004 | 12:23 PM
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Originally Posted by hondatech
:bs: Accord a/c works fine, My 93 blows 39 degrees f all day long on 100 degree days.
Besides Toyota and Honda share suppliers for compressors anyway and chances are they are the same company. (ND, Sanden)

Sounds to me like it's leaking somewhere and you have low pressure in the system, What year accord? Is the compressor coming on?
I'm assuming you have pressure gauges. What pressures do you have with the compressor off?
gimme ur a/c then. my 90 accord's a/c is so crap and my friend's 6th gen is even worse. but from my experiences my dads camry and lexus blows a/c so cold, its not even funny anymo...
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Old Jun 7, 2004 | 12:28 PM
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Maybe it needs repair, check the vents with a thermometer. I have one in all my cars to check A/C temps.
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Old Jun 7, 2004 | 02:58 PM
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Originally Posted by Illicit Accord
the one thing i did notice is when i turn on the AC the pressure in the system will drop to zero.
huh? where did you take the pressure reading from? A low side pressure will be somewhere in the range of 20-35 psi and high side something in 180-220 psi range. If it's zero, there is obviously no refrigerant in the system.

Oh and Wedley,
something I just noticed this weekend,the lousy heater valve on the accord doesn't close all the way (yeah I know some are designed to stay slightly open), but first turn your knob all the way to max cold and then manually close that water heater valve (located just underneath the intake plenum on the 5th Gen accords). You'll notice it moves just a notch more in the direction towards the front bumper, that's the complete closed position. Try not to turn your heater knob until winter hits and you need heat. Apparenlty for me, I tried adjust the valve, but the way it is designed it just won't allow to close completely, unless you manually shut it all the way. Dude I tell you, big difference, the damn a/c almost froze me out over the weekend, quite impressed indeed, especially for the R-134 system and in a black car.
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Old Jun 7, 2004 | 03:05 PM
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huh? where did you take the pressure reading from? A low side pressure will be somewhere in the range of 20-35 psi and high side something in 180-220 psi range. If it's zero, there is obviously no refrigerant in the system.

Oh and Wedley,
something I just noticed this weekend,the lousy heater valve on the accord doesn't close all the way (yeah I know some are designed to stay slightly open), but first turn your knob all the way to max cold and then manually close that water heater valve (located just underneath the intake plenum on the 5th Gen accords). You'll notice it moves just a notch more in the direction towards the front bumper, that's the complete closed position. Try not to turn your heater knob until winter hits and you need heat. Apparenlty for me, I tried adjust the valve, but the way it is designed it just won't allow to close completely, unless you manually shut it all the way. Dude I tell you, big difference, the damn a/c almost froze me out over the weekend, quite impressed indeed, especially for the R-134 system and in a black car

What's probably going on is when the system is off and the pressures "equal" the low side looks like it has pressure. Then when he turns on the compressor it zero's out the low side. Either way if the low zero's out it's probably leaking.

And yes I have seen tons of heater valves out of adjustment on Honda's that would not cold for anything. Fixing this fixed alot of a/c warm problems. Also on almost all accords between 90-96? the hot/cold knob on the dash always breaks internally and why you may turn the knob and it feels fine, it may not be turning the heater valve at all. I seen this every summer for the last 8 years and about 50% on accords with an A/c problem needed a new knob.
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Old Jun 7, 2004 | 08:53 PM
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Originally Posted by mohamed_ibrah
huh? where did you take the pressure reading from? A low side pressure will be somewhere in the range of 20-35 psi and high side something in 180-220 psi range. If it's zero, there is obviously no refrigerant in the system.

Oh and Wedley,
something I just noticed this weekend,the lousy heater valve on the accord doesn't close all the way (yeah I know some are designed to stay slightly open), but first turn your knob all the way to max cold and then manually close that water heater valve (located just underneath the intake plenum on the 5th Gen accords). You'll notice it moves just a notch more in the direction towards the front bumper, that's the complete closed position. Try not to turn your heater knob until winter hits and you need heat. Apparenlty for me, I tried adjust the valve, but the way it is designed it just won't allow to close completely, unless you manually shut it all the way. Dude I tell you, big difference, the damn a/c almost froze me out over the weekend, quite impressed indeed, especially for the R-134 system and in a black car.
hmmm, not sure if i can do that becuz my hands are always cold when i drive. but ill try to resist the cold, but i usually do not need to turn the knob all the way, at 2/3 its blastin hot air. but thx for the advise.
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Old Jun 7, 2004 | 09:31 PM
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From: Carmichael
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Originally Posted by hondatech
And yes I have seen tons of heater valves out of adjustment on Honda's that would not cold for anything. Fixing this fixed alot of a/c warm problems. Also on almost all accords between 90-96? the hot/cold knob on the dash always breaks internally and why you may turn the knob and it feels fine, it may not be turning the heater valve at all. I seen this every summer for the last 8 years and about 50% on accords with an A/c problem needed a new knob.
Thanks for the advice, my knob is actually fine, caz when I ripped out my entire front panel a week ago, I adjusted the air/mix cable off the back of the knob, and it works just fine as I saw the teeth and gear move accordingly. Problem is that lousy heater valve is the culprit and I can't get to completely shut all the way (it's just unfortunately the design of the valve as it appears). So for the time being, I'll just make sure not to turn that knob anywhere from it's current position, caz once i go turn midway and then back to cold, it won't completely shut the water heater valve off.
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Old Jun 8, 2004 | 06:49 AM
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You tryed adjusting it i take it? I disconnect the valve cable under the hood at the firewall, then I turn my knob to cold on the dash, then I set the heater valve to close. Then I hook back up the cable and lock the clip in place. Mine stays closed fine. You might have a bad valve or something, I see that from time to time. If you want to know for sure use hose pinch plier's and pinch off the heater hose after the valve. Then see if you get a cooler temp. reading. I do this on every car when checking the a/c performance.
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