cold/hot air blow only on one side

2000 LINCOLN LS
190,000 MILES • 3.9L • V8 • 2WD • AUTOMATIC
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TKURYLO
  • MEMBER
  • 6 POSTS
Hi!
hot air blow only from driver side. But when I select MAX temperature, hot air blow on both sides (when I select MIN temperature, cold air on both sides). Sometimes, hot air blow from passenger side, and cold air blow from driver side (very rarely). Air blows separately on each side and do not mix. Diagnostic self-test of DATC - display no errors. Can you help me? Thanks.
Apr 14, 2018 at 11:34 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
good morning.

Have you had the AC system checked? if the system is low in Freon or not functioning properly, this will be the result.

Roy

Also, the cooling system should also be checked to be sure as well.

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

https://www.2carpros.com/articles/engine-cooling-system
Apr 15, 2018 at 12:03 AM
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TKURYLO
  • MEMBER
  • 6 POSTS
"Have you had the AC system checked??" Yes. All is good with A/C.
Apr 15, 2018 at 1:28 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Okay, were the pressures checked and verified especially when the car is hot?

just trying to make sure the AC is not shutting down when warmed up.

Roy
Apr 15, 2018 at 1:31 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
What are the pressures on the high and low sides?
May 2, 2018 at 6:27 AM
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