dual ac
Thread Starter
Race Director
Joined: May 2006
Posts: 10,691
Likes: 71
From: Phoenix Arizona
dual ac
I was driving my new (to me) 99 vert home yesterday, and the driverside AC shut off. Fortunately the pass side kept it liveable (100 in Indio). I figured something just got stuck. I went out this morning, and the pass side still works great, the driver side blows warm. I've had C4's for years, but this is my first C5. My question is, is this a common problem? Where is the mixer doors, and how do I access them?
Drifting
Joined: Nov 2001
Posts: 1,319
Likes: 1
From: Lincoln Nebraska
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
Since his unit seems to operate correctly in all modes but simply blows warmer on the drivers side,he is prob just a little low on freon.If he has other mode issues he may have a vacuum problem.
Cruising
Joined: Jul 2010
Posts: 14
Likes: 0
Mine has done the same thing. I found that pulling the negative terminal for awhile and leaving it lets the actuator reset and then the air works again.
Just search the forum for that. There's also a fix about advancing the teeth a few degrees or something.
Just search the forum for that. There's also a fix about advancing the teeth a few degrees or something.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
If its still blowing cold on one side and not the other, its doubtful that its low on refrigerant. Most likely the driver's side actuator has a problem. Pull your codes as it might show up there.
Racer
Joined: Nov 2008
Posts: 412
Likes: 1
From: Lampasas Texas
Do the easy thing first, check the freon.
If that does not work then it may be the actuator.
It depends on what codes you have.
Common codes that you will get with this problem: B0361, B0363, B0441.
If you need instructions on how to get the codes or a code list, PM me and I will send you the information.
This is not a hard job but it does take a while.
Here is a good write up with pictures.
http://vette.tnreeds.com/actuator/actuator.htm
When this happened to me I replaced the actuator as the main gear was cracked.
The unit also needed freon to work correctly.
If that does not work then it may be the actuator.
It depends on what codes you have.
Common codes that you will get with this problem: B0361, B0363, B0441.
If you need instructions on how to get the codes or a code list, PM me and I will send you the information.
This is not a hard job but it does take a while.
Here is a good write up with pictures.
http://vette.tnreeds.com/actuator/actuator.htm
When this happened to me I replaced the actuator as the main gear was cracked.
The unit also needed freon to work correctly.
Last edited by Boulty1961; Apr 18, 2011 at 09:05 PM.
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Thanks for the info. Saved this for future reference. 
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Thread Starter
Race Director
Joined: May 2006
Posts: 10,691
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From: Phoenix Arizona
Thanks for the help. I put in a little freon and pulled the battery terminal for a few minutes. It seems to be working fine again. It's going to take me awhile to get smart enough on these to even ask a dumb question.
I put in a little freon and pulled the battery terminal for a few minutes. It seems to be working fine again. It's going to take me awhile to get smart enough on these to even ask a dumb question.
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
Do a search,low freon for this condition is VERY common!
My 2000 did that a couple of weeks ago.