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Location of the low pressure valve

Tiny
DEVONM
  • MEMBER
  • 1999 LINCOLN NAVIGATOR
V8 four wheel drive automatic 88,000 miles.

I have purchased 134a to recharge the Freon in my SUV. The hose connects to the low pressure valve only. The high pressure valve is sitting on top, easily accessible. I cannot find the low pressure valve. Please tell me where it is, or refer me to a diagram that clearly shows where it is located. Thank you for your assistance. It is very hot and need to get cool A/C pumped into my family vehicle.
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Saturday, August 7th, 2010 AT 12:10 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The low pressure service gauge port valve is located on the suction accumulator/drier.

Follow this guide to help you;

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

Please let us know how it goes so it can help others.
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Sunday, August 8th, 2010 AT 12:12 AM
Tiny
DEVONM
  • MEMBER
  • 2 POSTS
Thank you Rasmataz for your answer. Can you tell me specifically where on the vehicle? I can find the suction accumulator/drier. For instance, "it is located toward the middle of the vehicle, underneath". I know very little about cars and what the parts look like, so if I know a general location, that would really, really help. Thanks again.
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Sunday, August 8th, 2010 AT 11:36 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It is here on the accumulator which is located at the firewall near the rear of the engine compartment.


https://www.2carpros.com/forum/automotive_pictures/12900_accumulator_1.gif




https://www.2carpros.com/forum/automotive_pictures/12900_accumulator1_1.jpg

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Sunday, August 8th, 2010 AT 3:16 PM

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