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A/C losing Freon

Tiny
STEPHEN KUCHLER
  • MEMBER
  • 2006 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • MANUAL
  • 22,300 MILES
I got a used compressor, new drier, new o-rings, new schrader valve, both high and low put pag oil in, and still can't find the leak still. Any advice will help.
Wednesday, June 16th, 2021 AT 11:26 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Basically there is only one way to find these leaks and that is to put dye in the system and then find where it is coming out.

Here are some guides that will help with step by step instructions on how to do this:

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

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

Also, if you have not inspect the evaporator in the HVAC housing then that is where I would start based on how you have done. This is clearly not a visible component as it is in near the heater core but I bet that is where the leak is.

Let us know if you have questions on this. Thanks
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Thursday, June 17th, 2021 AT 5:37 PM

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