Drivers side A/C not working properly

2007 FORD FIVE HUNDRED
86,000 MILES • 3.0L • 6 CYL • AUTOMATIC
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BEAR450
  • MEMBER
  • 7 POSTS
my dad has the car listed above that has very little A/C on the drivers side.. passenger side is much warmer.. makes little difference if at idle or at 70 .. low side checks in the green with about 50 PSI. any ideas would be greatly appreciated.
May 15, 2021 at 9:50 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good morning,

The low pressure is way too high.

The high side should be 2 times ambient temperature plus 15%. The low side should be 25-30 rock solid.

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

Can you give me those pressures while running?

You most likely need an expansion valve from that reading.

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

Roy
May 16, 2021 at 4:30 AM
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