E430 Air Conditioning. Low pressure port
08-21-2013, 12:55 AM
#1
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E430
E430 Air Conditioning. Low pressure port
Hi Guys,
I just picked up my (new to me) E430 yesterday and the air conditioning is not as cool as I think it should be. I have a pressure gauge and wanted to check the pressure. I took a quick look and couldn't really see where the low pressure port is. Any help directing me to it would be appreciated. Thanks.
Polar
I just picked up my (new to me) E430 yesterday and the air conditioning is not as cool as I think it should be. I have a pressure gauge and wanted to check the pressure. I took a quick look and couldn't really see where the low pressure port is. Any help directing me to it would be appreciated. Thanks.
Polar
08-21-2013, 07:33 AM
#2
Out Of Control!!
You do know that to be meaningfully a real set of gages has a high and a low connection--- that is the way to test--------In any way why are you testing -------take the car back and have them test the AC system.
PS: The low pressure port is on the passenger side going into the compressor. The high pressure port is behind the aux fan flap!!
PS: The low pressure port is on the passenger side going into the compressor. The high pressure port is behind the aux fan flap!!
Last edited by Plutoe; 08-21-2013 at 03:27 PM.
07-25-2018, 04:28 PM
#3
I did test with the gauges that I got from O'Reilly and they read:
High Side: 100
Low Side 77-80
They both stayed the same while the car was on and the a/c system was not working
High Side: 100
Low Side 77-80
They both stayed the same while the car was on and the a/c system was not working
07-25-2018, 07:21 PM
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1922 Ford Model T / no OBD
As pressure difference shows, the compressor is working, just not building pressure.
You can do full system check per links in other topics, but if another test shows the same pressure difference - you need new compressor -usually coupled with new drier.
What you want to see with compressor set to max is 2 -3 bars on low side and at least 17 on high
You can do full system check per links in other topics, but if another test shows the same pressure difference - you need new compressor -usually coupled with new drier.
What you want to see with compressor set to max is 2 -3 bars on low side and at least 17 on high
