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Where is low pressure port?

Tiny
JARED E.
  • MEMBER
  • 2003 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 122,000 MILES
I'm trying to add R134a to my car but I'm having a lot of trouble locating my low pressure port. I would look in my owners manual for a diagram but I'm not sure where it is.

-Jared
Sunday, August 23rd, 2009 AT 7:28 PM

11 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
It is easy to find follow the large tube from the firewall that goes to the rear of the compressor it will be on that line. Here is a video and guide that should be able to help.

https://youtu.be/ON2dYcmXIAw

and

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Sunday, August 23rd, 2009 AT 8:09 PM
Tiny
MEL92767
  • MEMBER
  • 2 POSTS
  • 2001 FORD TAURUS
Where is the 'low" side of a 2001 Ford Taurus A/C unit located? We need to add freon but not sure where the "low side" is located.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Look on the passenger side for the aluminum accumulator, the service port is on it, The high side is a smaller port, so the hose end won't fit it anyway, charge with the can in the upright position only. This way it dispenses gas and will not damage the compressor.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Usually its located on or around the accumulator
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
CRW1950
  • MEMBER
  • 1 POST
  • 2001 FORD TAURUS
  • 176,000 MILES
I cannot find the recharge port for the air conditioning. Could you please advise where is the refill port located for the air conditioner recharge? I find a large port standing near the windshield washer reservoir but it is too large. Where is the recharge port?
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Sometimes the Low-Side port can be hard to locate.The low side are the larger of the two lines for the A/C system. Please see the attached diagrams and video to help you locate the service port. I have also attached a guide to help you charge the A/C once you locate the correct service port.

https://youtu.be/ON2dYcmXIAw

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

Please check out the attached videos, guides and diagrams, let us know what you find.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
JFA23234
  • MEMBER
  • 2 POSTS
  • 1999 FORD TAURUS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 11,200 MILES
I need help finding the low pressure port so I can charge the system. I found the high pressure port but the low pressure is not in the same area.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
Look at rear of engine compartment by the firewall on pass side down low. Should be there. Let me know.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
JFA23234
  • MEMBER
  • 2 POSTS
I found a fitting on the firewall that is non metallic and has a green cap with a tag that reads "EVAP SERVICE PORT 1PSI REGULATED PRESSRE ONLY" Is that the low pressure port where I would charge the system?
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
I apoligize for not getting back to you sooner. Thats not the port. Thats for evap testing. Yours will be a black cap. The adapter is on the fatter of the 2 ac pipes.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

Here is a tutorial for you to view on how to add refrigerant to your A/C system:

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

I've added a picture below of the low side service port on your car and circled in red. Hope this helps and thanks for using 2CarPros.
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Wednesday, July 28th, 2021 AT 1:00 PM (Merged)

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