** A/C Controller fix***
Thread Starter
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** A/C Controller fix***
my A/C blows colder on the passenger side than the driver side. Is there a fix for that or do I need a new controller. I found the guy on Ebay that fixes them but he says his fix will NOT solve this issue.
Will a new controller solve the issue?
TIA
Will a new controller solve the issue?
TIA
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
You could always have the car converted to a right hand drive! 
Sorry, I couldn't help myself.
People complain about the actuators being off and one side being totally hot and the other being cold. Maybe yours just isn't that bad off. Have you tried re-indexing the actuators?
http://forums.corvetteforum.com/show....php?t=1465931
Sorry, I couldn't help myself.
People complain about the actuators being off and one side being totally hot and the other being cold. Maybe yours just isn't that bad off. Have you tried re-indexing the actuators?
http://forums.corvetteforum.com/show....php?t=1465931
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Team Owner
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Thanks...I saved that one to Favs...just in case..gonna try resetting codes first and go from there 
Melting Slicks
Joined: Apr 2007
Posts: 2,945
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From: Hereford AZ
There are alot of things to try; do a search and you will find out.
I will tell you. if it is your actuators or some other component in the dash area (the vacuum lines or the vacuum actuators) it is very easy to remove the dash pad and get to the components.
The dash can be pulled in about 45 minutes with normal hand tools. I am not just pontificating; I recently did it.
Anyway, just FYI so you are not intimidated.
I will tell you. if it is your actuators or some other component in the dash area (the vacuum lines or the vacuum actuators) it is very easy to remove the dash pad and get to the components.
The dash can be pulled in about 45 minutes with normal hand tools. I am not just pontificating; I recently did it.
Anyway, just FYI so you are not intimidated.
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
There are alot of things to try; do a search and you will find out.
I will tell you. if it is your actuators or some other component in the dash area (the vacuum lines or the vacuum actuators) it is very easy to remove the dash pad and get to the components.
The dash can be pulled in about 45 minutes with normal hand tools. I am not just pontificating; I recently did it.
Anyway, just FYI so you are not intimidated.
I will tell you. if it is your actuators or some other component in the dash area (the vacuum lines or the vacuum actuators) it is very easy to remove the dash pad and get to the components.
The dash can be pulled in about 45 minutes with normal hand tools. I am not just pontificating; I recently did it.
Anyway, just FYI so you are not intimidated.
The vacuum portion controls which level the air blows out of, so this will not have anything to do with vacuum.
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Pro
Joined: Sep 2007
Posts: 735
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From: Bucks County Pa
Being short on refrigerant will cause this problem. If the level is proper, then you can do the fuse 27 recalibrate if you have the dual zone system. If the recalibrate does not help then you have to look at the driver side actuator.
My best guess is that you are short on refrigerant.
Good Luck
Thread Starter
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The first thing to do is check the refrigerant level. (Read plasticfan's thread on ac charging)
Being short on refrigerant will cause this problem. If the level is proper, then you can do the fuse 27 recalibrate if you have the dual zone system. If the recalibrate does not help then you have to look at the driver side actuator.
My best guess is that you are short on refrigerant.
Good Luck
Being short on refrigerant will cause this problem. If the level is proper, then you can do the fuse 27 recalibrate if you have the dual zone system. If the recalibrate does not help then you have to look at the driver side actuator.
My best guess is that you are short on refrigerant.
Good Luck
I imagine it may be from the battery disconnect during the install...I will do the recal today and see what happens
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Burning Brakes
Joined: Aug 2004
Posts: 770
Likes: 0
Quote..."all new freon and evaporator so I know thats not it."
Well, new stuff may leak too. How was the system leak checked and for how long? Hook up the gages and check the pressure. If I remember right, you need about 27 - 28 lbs on the lo side.
If you have dual a/c, and are getting cold air on the pass side and warm air on the driver side - indicates low referigerant. The evap coils are stacked, with the drivers coil above, this allows the upper coil to starve in a low referigerant condition.
Well, new stuff may leak too. How was the system leak checked and for how long? Hook up the gages and check the pressure. If I remember right, you need about 27 - 28 lbs on the lo side.
If you have dual a/c, and are getting cold air on the pass side and warm air on the driver side - indicates low referigerant. The evap coils are stacked, with the drivers coil above, this allows the upper coil to starve in a low referigerant condition.
Last edited by DRR; Sep 3, 2008 at 10:13 AM.
Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
As suggested earlier, you need to use platicfans thread to check your freon. Especially if you just had it serviced. The C5s are notorious for acting up with as little as 3-4oz of 134a missing. The first symptom is the drivers side not getting cold. Also the actuator recalibrate can help. But first, check the freon accurately, as most A/C techs are not familiar enough with our cars to know this, and end up just getting the charge "close enough".
Here's plasticfans thread.
http://forums.corvetteforum.com/show...&highlight=101
Here's plasticfans thread.
http://forums.corvetteforum.com/show...&highlight=101
Pro
Joined: Sep 2007
Posts: 735
Likes: 7
From: Bucks County Pa
AC Problem
Hi, I agree with streak, maybe it's not your problem, but deserves a second check to rule it out before spending money that you might not have to spend. If it turns out ok, then the fuse pull, may be it, or an actuator, or the control head. Below is a thread of a similar instance and the op found that the servicer did not fill the system properly.
Good Luck
http://forums.corvetteforum.com/show...417&highlight=
Good Luck
http://forums.corvetteforum.com/show...417&highlight=
Melting Slicks
Joined: Apr 2007
Posts: 2,945
Likes: 1,115
From: Hereford AZ
The actuators are indeed electric however they do control the vents in the AC (to divert the air to blend). There are 3 vacuum operated diaghrams (referred to by the dealer also as actuators) also in the dash. This can indeed affect which side blows hot and or cold. I have personnally taken the dash apart and changed each of these components; also one can view the operation of each part with the dash off.
Last edited by vjjack04; Sep 7, 2008 at 10:35 AM.