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Gm , this is my 1st time posting on this site, so I’m not sure if I’m posting in the correct section.
Any help would be greatly appreciated. So I had no issues with my ac, I have been using it fine for the past 2 months. After parking it one afternoon, I went back to run an errand and the ac wouldn’t start…the light on the ac button wouldn’t even come on. I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
Possible failure of the Low pressure switch sensor.
Take car to dealer or a service that specializes in a/c repair.
Suggest posting your car information.
I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
You have done all the right things... now just replace the pressure sensor/sw @SmokinJoe pointed out.
You won't need to vacuum the circuit if you're quick enough to swap!
No need parts?
Before anything look if connector contacts make/female are oxidized.
Clean or replace.
Just an update, took the car to Meineke, they told me the compressor needed to be replaced and quoted me $3200, I ordered the pressure sensor and replaced myself and ac is colder than beforE… thank you guys … you saved me 3150
Just an update, took the car to Meineke, they told me the compressor needed to be replaced and quoted me $3200, I ordered the pressure sensor and replaced myself and ac is colder than beforE… thank you guys … you saved me 3150
Everyone loves a good happy ending
This $3k discount was within your reach
This pesty code that’s popped up a week before the ac issue…
This fault says that your engine oil pressure regulation is faulty.
Poke around Xentry to read oil pressure data!
-- It's not bad if you're stuck always get high ressure
-- It's bad news for the camshafts spinning in aluminum heads if the valve is stuck bleeding pressure.
Last edited by CaliBenzDriver; Aug 17, 2022 at 12:56 AM.
Just an update, took the car to Meineke, they told me the compressor needed to be replaced and quoted me $3200, I ordered the pressure sensor and replaced myself and ac is colder than beforE… thank you guys … you saved me 3150
Hi Mike, I’m have a similar problem. Just wondering where on the car you located the low pressure sensor?
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