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1999 Escort LX 5 spd
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Discussion Starter · #6 ·
So far at 80 degrees ambient temp I can only get it to 32psi at idle on max ac and close to 40 on the regular ac setting. It sounds like there's a leak near the high side port, but its not the port. It does it for a few seconds after turning car off. It gets cool but not quite right yet. Gonna look into the air noise coming from the front driver side of the car. I hope its not my condenser.

Low side rises to around 70-80 ish when ac turned off.
 

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1999 Escort LX 5 spd
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22 Posts
Discussion Starter · #9 ·
I finally got it working well. I've seen it drop to 37f in the vent, averages 39-41f on the highway. The car is still not freezing inside though when its warm out. I figure that's a limitation of an economy car ;)

Oh note, my dads 2018 chevy 5.3 silverado averages 43f on the highway but gets a lot colder inside the cabin. He has a lot better airflow from the vents.
 

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1999 Escort LX 5 spd
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22 Posts
Discussion Starter · #10 ·
Sorry about the double post here. It sits around 47psi on max ac at about 95f outside temp. Seems about right I guess. If I get it higher(psi) the vent temp rises several degrees. Same with less psi than 47psi. So 47 must be the sweet spot.
I used a ac temp gauge in the vent to get it as close to perfect as possible. O Reilly has them for about $8.
 
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