A/C Compressor Turning On And Off Often
#11
CF Monarch
Well, the vehicle is at least 15 years old. It's perfectly normal to gradually lose a small amount of refrigerant, but it adds up over a long period of time. If the AC system has never been serviced, it could just need be recharged.
FWIW we had our 2007 Equinox professionally evacuated and recharged about 2 years ago. We've owned it since 2008 so I'm sure it had never been serviced prior to that. It was about 9 ounces low on refrigerant, and the system holds 1.3 lbs. Your 2008 holds the same amount, so it could definitely be low just like ours was. Ours was behaving similarly before it was recharged. It works pretty good now. It still doesn't seem quite as good as new even though the measured temp at the vents is around 38-40°F. The condenser is pretty beat up from road debris hitting it over the years so I've just chalked it up to that. It's not leaking, but the cooling fins aren't very straight on the bottom 1/3 or so. I simply need to take the time to straighten them out.
FWIW we had our 2007 Equinox professionally evacuated and recharged about 2 years ago. We've owned it since 2008 so I'm sure it had never been serviced prior to that. It was about 9 ounces low on refrigerant, and the system holds 1.3 lbs. Your 2008 holds the same amount, so it could definitely be low just like ours was. Ours was behaving similarly before it was recharged. It works pretty good now. It still doesn't seem quite as good as new even though the measured temp at the vents is around 38-40°F. The condenser is pretty beat up from road debris hitting it over the years so I've just chalked it up to that. It's not leaking, but the cooling fins aren't very straight on the bottom 1/3 or so. I simply need to take the time to straighten them out.
were built great, IMO. Most likely because they didn't have all of these crap Asian parts.
Last edited by oilcanhenry; April 21st, 2023 at 2:38 PM.
#12
CF Beginner
Thread Starter
Problem Solved!
Today I went to an a/c service professional, which is a small, non-fancy, warehouse space, Carlos pulled out his gauges and immediately diagnose an overcharged refrigerant condition in my a/c. Hearing that I couldn't spend $250 for the standard refrigerant recovery and recharge to the exact required amount for optimal cooling and, seeing my total disappointment, bad day face, took pity on me and offered a fix of extracting some of the gas. I was very satisfied with the very reduced quickie. Now it's cooling plenty, down to about 56F at the vent. Maybe I'll get brave enough to inject/charge a little more R 1343a and see if I could get it" a little lower. Can you gentlemen advise me on this?
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
#13
Today I went to an a/c service professional, which is a small, non-fancy, warehouse space, Carlos pulled out his gauges and immediately diagnose an overcharged refrigerant condition in my a/c. Hearing that I couldn't spend $250 for the standard refrigerant recovery and recharge to the exact required amount for optimal cooling and, seeing my total disappointment, bad day face, took pity on me and offered a fix of extracting some of the gas. I was very satisfied with the very reduced quickie. Now it's cooling plenty, down to about 56F at the vent. Maybe I'll get brave enough to inject/charge a little more R 1343a and see if I could get it" a little lower. Can you gentlemen advise me on this?
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
It's generally not normal for the climate control to automatically switch to recirculate. However, TSB # PIT4705 states this can happen if the A/C system head pressures are too high (400 PSI or above). Recirculate is disabled below 32°F and whenever defog/defrost mode is used.
The following 2 users liked this post by ruley73:
oilcanhenry (April 26th, 2023),
rcchevrolet (April 26th, 2023)
#14
CF Monarch
Today I went to an a/c service professional, which is a small, non-fancy, warehouse space, Carlos pulled out his gauges and immediately diagnose an overcharged refrigerant condition in my a/c. Hearing that I couldn't spend $250 for the standard refrigerant recovery and recharge to the exact required amount for optimal cooling and, seeing my total disappointment, bad day face, took pity on me and offered a fix of extracting some of the gas. I was very satisfied with the very reduced quickie. Now it's cooling plenty, down to about 56F at the vent. Maybe I'll get brave enough to inject/charge a little more R 1343a and see if I could get it" a little lower. Can you gentlemen advise me on this?
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
In conclusion, the clicking, and cycling on and off is clear evidence of overcharge, he says. The a/c control of the air intake or recirculating light switching back and forth, on its own, between the two appears to be a normal consequence of cycling on and off. That's what I am guessing.
Thaks again for all the help. Greatly apreciated.
Last edited by oilcanhenry; April 26th, 2023 at 4:41 AM.
The following users liked this post:
rcchevrolet (April 26th, 2023)
#15
CF Beginner
Thread Starter
Considering an a/c gauge set, maybe from Amazon, to start getting educated on auto a/c systems and checking refrigerant charge, diagnose, etc.
Any suggestions on this and maybe some youtube videos to set me on the right track? Maybe a good idea for me.
Here is an image of the refrigerant bottle I have used on several cars with good results except for the Equinox overcharge incident.
Any and all suggestions are greatly accepted.
Any suggestions on this and maybe some youtube videos to set me on the right track? Maybe a good idea for me.
Here is an image of the refrigerant bottle I have used on several cars with good results except for the Equinox overcharge incident.
Any and all suggestions are greatly accepted.
#16
CF Monarch
Considering an a/c gauge set, maybe from Amazon, to start getting educated on auto a/c systems and checking refrigerant charge, diagnose, etc.
Any suggestions on this and maybe some youtube videos to set me on the right track? Maybe a good idea for me.
Here is an image of the refrigerant bottle I have used on several cars with good results except for the Equinox overcharge incident.
Any and all suggestions are greatly accepted.
Any suggestions on this and maybe some youtube videos to set me on the right track? Maybe a good idea for me.
Here is an image of the refrigerant bottle I have used on several cars with good results except for the Equinox overcharge incident.
Any and all suggestions are greatly accepted.
https://www.youtube.com/watch?v=Pdq8JAlct6s
Any questions, just ask me, rcchevrolet.
The following users liked this post:
rcchevrolet (April 28th, 2023)
#17
CF Beginner
Thread Starter
rcchevrolet Yes I can do this for sure! ChrisFix links to Amazon sound like a good price complete with a carrying bag.
I will also want a leak detector and refrigerant can tap valve. Should I go for one of these sets? I'm to suggestions. Thanks again, very much.
I noticed my own posting to ChristFix, the first one on top, 2 years ago but totally forgot all about it.
I will also want a leak detector and refrigerant can tap valve. Should I go for one of these sets? I'm to suggestions. Thanks again, very much.
I noticed my own posting to ChristFix, the first one on top, 2 years ago but totally forgot all about it.
#18
CF Monarch
rcchevrolet Yes I can do this for sure! ChrisFix links to Amazon sound like a good price complete with a carrying bag.
I will also want a leak detector and refrigerant can tap valve. Should I go for one of these sets? I'm to suggestions. Thanks again, very much.
I noticed my own posting to ChristFix, the first one on top, 2 years ago but totally forgot all about it.
I will also want a leak detector and refrigerant can tap valve. Should I go for one of these sets? I'm to suggestions. Thanks again, very much.
I noticed my own posting to ChristFix, the first one on top, 2 years ago but totally forgot all about it.
The following users liked this post:
rcchevrolet (April 29th, 2023)
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