a/c issues
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Cargo Master
Joined: Dec 2007
Posts: 2,038
Likes: 310
a/c issues
We bought back our middle daughters Ford Edge...long story...and have had it up and running since the middle of the summer. I know it's not an F series like our other 2 trucks but there are some good folks on here that are more versed than I on this subject. The a/c has been cooling fine at 45*-48* vent temperature depending on outside air temperatures...it's been hot. Sunday we drove the car and everything seemed okay on the short trip to and from church. So a couple hours later we get in the car to go get our youngest daughter and immediately notice the a/c blowing warm air. I cycle the a/c system on/off and my wife noticed in the beginning there was a short burst of cold air before going warm. I hook up Forscan to check DTC codes and there's nothing related to the a/c system. I also did the KOEO self test and the fans powered up, then the compressor clutch engaged. I hook up a set of gauges and the high and low side were near 0 with engine off. So I jump the compressor clutch relay while the engine is running and get a reading of -20 on the low side and +20 on the high side. I'm confused about this and looking for insight...
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Not being familiar with that particular setup I'm not sure but from the sound of it you've got a blockage in the system, but that doesn't explain the 0 psi gauge readings. Either way here's a bump hoping someone more helpful stumbles across the thread.
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Cargo Master
Joined: Dec 2007
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Likes: 310
I forgot to mention that when we got back home from getting our youngest daughter I noticed the compressor clutch was engaged when the a/c was on but the refrigerant line coming off the compressor was not cold. I also checked it the next morning after sitting all night and that's when the compressor clutch would not engage when turned on.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Resting pressure needs to be at least 50 psi. You have a freon leak somewhere.
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