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Air Conditioner not working properly

Tiny
LIONELL8732
  • MEMBER
  • 2007 MERCURY MILAN
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
So, I am driving down the highway and I notice the A/C was getting weak. I still can feel the cold air but not as strong. So, I turned it to the heat, and I could hear the blend door actuator moving but still not getting that strong air, so I turned it all the way up to four speed and still it was blowing light. So, I shut it off and rode with the windows down on my way home. Any suggestions?
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Wednesday, May 18th, 2022 AT 1:49 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This could be a couple of things, so we need to start with the basics and that means we need to check the pressures in the system to find out if the system is weak or not.

Here is a guide that will help with this:

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

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Once we know what the pressures are then we can determine the next steps so I am attaching a chart below that will help with this as well.

Let me know if you can get the pressures when the system is off and then on.

Thanks
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Wednesday, May 18th, 2022 AT 3:14 PM

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