Low Charge?

2006 NISSAN MURANO
140,112 MILES • 3.5L • 4 CYL • 2WD • AUTOMATIC
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MOO2CAR
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I measured the pressure on the low- and high-pressure side of the car today, Results as follows:
Outside temperature - 86F
Pressure low side - 26 psig
Pressure high side - 180 psig
Temp out of vent 62F
From these results, it looks like low charge. Should I recharge after having the refrigerant evacuated at a shop?
I enclose a video of the engine and A/C running during the measurement. There is a click-click sound that can be heard in the background. Can you tell me what this sound denotes? Hope it doesn't have to do with the compressor.
Video (Click to enlarge)
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May 28, 2024 at 3:14 PM
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STRAILER
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If you turn the A/C system off the noise should go away if it is compressor related, to me it sounds like a loose spark plug or an ignition system leak. See if you can get a better idea of where the noise is coming from and go from there, you can start a new thread for the noise and upload a video closer to the noise to help us see what's going on, as afar as the A/C system, yes I would do a vacuum down and recharge.

This video should help:

https://youtu.be/4EqdrBVb0sY?si=IVDFgZD-CLiwd03V

This guide can help as well:

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

Please go over these guides and get back to us.
May 29, 2024 at 2:25 AM
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MOO2CAR
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I evacuated it but could not get it to hold vacuum. So I took it to a shop. They evacuated it and refilled it with a dye and told me to bring it back if it loses refrigerant, so they can detect where it has been leaking.
Jun 15, 2024 at 12:13 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,051 POSTS
Nice work, also the dye will be tough to see if the front seal of the compressor is leaking.

here is a guide that works well if you park the car out of the wind like inside a garage:

https://www.2carpros.com/articles/air-conditioner-leak-detection

Please go over this guide and get back to us.

Jun 16, 2024 at 5:22 AM
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