A/C low pressure

Tiny
TAMMYE BRANTLEY
  • MEMBER
  • 2007 CHEVROLET EQUINOX
  • 2.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 129,000 MILES
Have put new expansion valve, and pressure sensor. Low side 30, high side 100.
Monday, June 15th, 2020 AT 12:01 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Take a look at this attachment and see the 125/30 PSI portion. I suspect this is the issue. When you replaced these parts did you add oil? If not, I would suggest pulling the entire system down and evacuating it then add the proper amount of Freon and oil back in. Then check the pressures again.

Here is a guide on this process:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Let us know what you find. Thanks
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Monday, June 15th, 2020 AT 12:29 PM

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