AC Blend Door
Race Director
Joined: Oct 2004
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Drifting
Joined: Mar 2018
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From: New Jersey
Le Mans Master
Joined: Dec 2017
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From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
A bad blend door actuator could be your issue, but there are other possibilities as well. You could be low on R134a, you compressor could be bad. The first step is to check your codes. then go from there.
Pro
Joined: Oct 2019
Posts: 594
Likes: 194
From: Back in North Central OH
If one side blows cold and the other side doesn't, it's likely a blend door not closing all the way on the warm side.. The actuators have nylon gears in them that can split, allowing the door not to go all the way into position. I've been all the way through this.
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
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St. Jude Donor '03 thru '26
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Moved to C5 Tech.
Race Director
Joined: Oct 2004
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This could be the problem, but in my experience, if the car has climate control, the 2 or 3 times this has happened to me, car was low on refrigerant. This happened on my C5 AND a 2003 LeSabre. Each time, a recharge fixed it. The Buick went 400,000 miles, still had original A/C system!!! Only a deer collision took it off the road......
