A/C Issue - blows hot on D side only!
Thread Starter
3rd Gear
Joined: Jun 2008
Posts: 3
Likes: 0
A/C Issue - blows hot on D side only!
Ok I'm helping my dad out with his C5 and there are some real hijinks going on with his AC. The passenger side blows cold but the driver's side blows hot. It is an intermitten problem with no consistency.
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
Last edited by Charger Vet; Jun 17, 2008 at 04:24 PM.
Melting Slicks
Joined: Mar 2007
Posts: 2,280
Likes: 0
From: Norman Oklahoma
Thread Starter
3rd Gear
Joined: Jun 2008
Posts: 3
Likes: 0
try this link! #7 
http://forums.corvetteforum.com/arch...t-1465931.html
http://forums.corvetteforum.com/arch...t-1465931.html
I did a search and didnt see this one..
Racer
Joined: Apr 2002
Posts: 352
Likes: 11
From: Glendale AZ
Warm and Cold Air
Here is another thread to check out:
http://forums.corvetteforum.com/show....php?t=1698740
Very often cold air out of the passenger side vents and warm air out of the driver side vents means your system is low on refridgerant. This is almost always true if you are not getting any HVAC codes.
David in Glendale
http://forums.corvetteforum.com/show....php?t=1698740
Very often cold air out of the passenger side vents and warm air out of the driver side vents means your system is low on refridgerant. This is almost always true if you are not getting any HVAC codes.
David in Glendale
Burning Brakes
Joined: Sep 2003
Posts: 886
Likes: 87
From: Largo FL
Very often cold air out of the passenger side vents and warm air out of the driver side vents means your system is low on refridgerant. This is almost always true if you are not getting any HVAC codes.
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8th Gear
Joined: Mar 2008
Posts: 8
Likes: 0
My '98 did the same thing a month ago. As per the service manual, I unplugged the HVAC fuse from the fuse panel under the passenger side foot well and then plugged it back in. The same thing can be done by unplugging the battery and plugging it back in. Apparently, the actuators can loose there "memory". That is they don't know if they are open or closed or somewhere in between. This power off and back on allows the HVAC actuators to recallibrate. It worked just that easy for me. Hope it works for you too!
Pro
Joined: Sep 2007
Posts: 735
Likes: 7
From: Bucks County Pa
AC Problems
Ok I'm helping my dad out with his C5 and there are some real hijinks going on with his AC. The passenger side blows cold but the driver's side blows hot. It is an intermitten problem with no consistency.
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
If it is a manual system, then you probably are low on refridgerant, and need to add some up to the proper amount, add a bit of ref oil with it.
If the car is the dual zone system, then you can try to re calibrate your actuators, by turning the key to on position, and pulling fuse#27 which is in the pass side footwell electric center, wait a minute and replace the fuse. If that doesn't fix the problem, then check the refridgerant pressures. If they check out good, then you may have a control head problem, or a bad actuatot door, or both.
On both systems you should confirm that your vacuum lines are not broken or loose, the main vacuum line comes from a port on the back of the intake manifold, and routes through the wire harness over to the vacuum tank in the wheelwell area under the battery and battery tray, it then goes into the car through the firewall and connects to the vacuum distributor located behind the lower insulator pad in the dash on the pass side behind the glove box.From there the lines go to the various mode, heat, and air controllers. The actuator doors for left and right on the dual zone system are controlled by electric motors
Good Luck
Burning Brakes
Joined: May 2006
Posts: 1,049
Likes: 2
From: Houston TEXAS
Here is another thread to check out:
http://forums.corvetteforum.com/show....php?t=1698740
Very often cold air out of the passenger side vents and warm air out of the driver side vents means your system is low on refridgerant. This is almost always true if you are not getting any HVAC codes.
David in Glendale
http://forums.corvetteforum.com/show....php?t=1698740
Very often cold air out of the passenger side vents and warm air out of the driver side vents means your system is low on refridgerant. This is almost always true if you are not getting any HVAC codes.
David in Glendale
Had the SAME gremlin last week. Was low on freon. Filled to factory specs and problem solved. I'd start with the easy fixes like this one first!!
Drifting
Joined: Jan 2006
Posts: 1,819
Likes: 5
From: Annapolis Md.
Ok I'm helping my dad out with his C5 and there are some real hijinks going on with his AC. The passenger side blows cold but the driver's side blows hot. It is an intermitten problem with no consistency.
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
There must be some exchanger or bypass that moves cold air over...I'm stuck.
Corvette Nation - got any ideas?
Safety Car
Joined: Dec 2004
Posts: 3,526
Likes: 20
From: Santa Fe TX
