Maintenance and Upkeep Discussion HHR maintenance tips ranging from oil change intervals to brake pads and everything in between.

Charge a/c

Old 07-20-2018, 08:36 AM
  #11  
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Originally Posted by Cat Man HHR
Why? There are no high and low pressures shown.
Find out before you overthink the wheel.
K.I.S.S.
His quote stated that the pressure would equalize after turning it off, he did not say what the pressures are. Until he post those pressures...it is all a guess. Since the system only holds .9 pounds, it is very easy to over fill and flood the evap preventing the Freon "flash over" that provides the cold evap.

Seen it many times, all kinds of equipment. like I said, just guessing without actual pressures.
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Old 07-20-2018, 08:54 AM
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I will try to get them today.

Last edited by RJ_RS_SS_350; 07-20-2018 at 09:36 AM.
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Old 07-20-2018, 12:36 PM
  #13  
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Originally Posted by J W Davis
His quote stated that the pressure would equalize after turning it off
A system should equalize it's pressures when not in use. But it could be 40/40, 60/60 or more.
Knowing ambient air temperatures and the low and high side pressures when in use can help in the diagnosis.

K.I.S.S. = "Keep It Simple Stupid"
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Old 07-20-2018, 02:59 PM
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Thank you, I look into it in a few. I did bleed some off yesterday and drove about an hour. It did cool down in the 93 degree temp here in Atlanta. Mostly when stopped in traffix or at a steady speed at about 40, or 65. But it did go warmer but not hot. I will be getting pressures in a while. Although I will be quessing as to how much refrigerate is in the system. I thought it might just be easier to vacuum it out and put 14.4 Oz back into it. (.9 lbs).
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Old 07-20-2018, 03:13 PM
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Might be if you know what you are doing.
filter, PAG, vacuuming correctly etc.
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Old 07-20-2018, 03:53 PM
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If you're going to post up the pressures, you need all the stats.
Static pressure-gauges hooked up, nothing running.
Working pressures, high and low with AC operating.
Outside/ambient temperature

FYI. I wouldn't post up anything about "bleeding off" freon into the atmosphere.
The EPA feds may come to see you.
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Old 07-20-2018, 04:25 PM
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This is why:





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Old 07-20-2018, 04:31 PM
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No I take to get the system properly discharged. It is easier to say bleed.
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Old 07-27-2018, 05:58 PM
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Originally Posted by Scorangehhr
No I take to get the system properly discharged. It is easier to say bleed.
Hmm. To have it properly discharged it has to be connected to a recovery machine. Those have gauges so you should have been able to see what the pressure readings were when you bleed some off.

edit. I'm starting to doubt the validity of this story. Since the OP hasn't returned in a week now, we either scared him off or it wasn't what it originally appeared to be.
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Old 07-28-2018, 01:03 PM
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Or he just found his answers/fix elsewhere
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