Odd AC issues
07-07-2022, 08:07 AM
#1
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2011 E350 Wagon
Odd AC issues
My 2011 E350 wagon has been having some odd AC issues. If I start the car and the AC was not already engaged from last run, I have to turn on the AC and shut the car off then restart to get any cold air. Sometimes if i start the car and the AC is already on from last ride, I need to turn the "zone button" on and off to get cold air.
These issues and results are intermittent and random, so hard to trouble shoot because I am never prepared to start troubleshooting when it happens. Just wondering if anyone has had this issue before, AC relay?
These issues and results are intermittent and random, so hard to trouble shoot because I am never prepared to start troubleshooting when it happens. Just wondering if anyone has had this issue before, AC relay?
07-07-2022, 08:43 AM
#2
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1922 Ford Model T / no OBD
Start with basic troubleshooting.
Read all the AC-related sensors first thing in the morning before engine start.
All temp sensors should show the same with 2-3 degrees error margin.
That will also tell you static refrigerant charge.
Than observer refrigerant pressure when you start AC.
Read all the AC-related sensors first thing in the morning before engine start.
All temp sensors should show the same with 2-3 degrees error margin.
That will also tell you static refrigerant charge.
Than observer refrigerant pressure when you start AC.
