Air conditioning
Former Law Dawg Moderator
Joined: Jan 2005
Posts: 29,434
Likes: 96
From: Eads, Tennessee
CF St. Jude Co-Organizer
St. Jude Donor '05 thru '24
If you mean that the air blows hotter on the driver's side it could possibly be the A/C actuators need to be calibrated. Pull up your DIC and see if you have a history/current code B0361.
Burning Brakes
Joined: Sep 2004
Posts: 1,056
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From: Havelock, NC ( NJ Resident )
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3rd Gear
Joined: Sep 2007
Posts: 3
Likes: 0
Air Conditioning
I had the same problem as well. I was told thaat it needed to be recalibrated. However at the same time I was having a problem with the positive post on the battery staying tight. Found out that thecomputer system was setting and re-setting itself as the post was hot then not. Once I got the post fixed the system has worked fine every since.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
Don't Overfill With Freon
The total charge in the C5 is just a hair under 2 cans of freon. If you OVERCHARGE it will not cool properly. I just replaced the expansion orfice tube (about $2.50) in the high pressure side line, evacuated and recharged with 2 cans and it still wasn't cooling. Found that the vacuum check valve had a crack in it and my inside actuators weren't working. $3.44 at Advance in the help section to replace the valve.
My plastic vacuum lines had rotted out like MOST C5s with the Delco batteries and I replaced them about 2 years ago. Now on my 3rd check valve but it cools fine NOW. Goodluck
BIGHANK
My plastic vacuum lines had rotted out like MOST C5s with the Delco batteries and I replaced them about 2 years ago. Now on my 3rd check valve but it cools fine NOW. Goodluck
BIGHANK
Instructor
Joined: Jul 2006
Posts: 210
Likes: 2
From: Elkins Park PA
These suggestions to change the compressor or recharge the freon make no sense to me at all. Not saying you're wrong, or that these solutions didn't work, just that I don't understand how either of those could possibly fix the problem.
How would a bad compressor or low freon lead to cold air out of one duct and warm air out the other?!?
How would a bad compressor or low freon lead to cold air out of one duct and warm air out the other?!?
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
These suggestions to change the compressor or recharge the freon make no sense to me at all. Not saying you're wrong, or that these solutions didn't work, just that I don't understand how either of those could possibly fix the problem.
How would a bad compressor or low freon lead to cold air out of one duct and warm air out the other?!?
How would a bad compressor or low freon lead to cold air out of one duct and warm air out the other?!?
Apparently since some C5 have the dual climate control the sides are separated, when low the drivers side is the one that fails to cool first.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
put the controls on recirc and 60 degrees
If you have dual controls like on my 98 set the temp to 60 degrees and air on top vents and recirc. It should blow COLD air out of both sides since the pasanger control is inoperative at either min (60 degrees) or max (90 degrees). If the temps are different when you do this maybe an actuator is stuck. Make sure you have vacuum to the purple hose which feeds the vacuum actuator switch. If NOT then search on vacuum leaks and leaky battery and fix that first.
BIGHANK
BIGHANK
Last edited by bighank; Sep 13, 2007 at 10:59 AM.