No A/C
Thread Starter
Intermediate
Joined: Apr 2024
Posts: 27
Likes: 2
No A/C
Perfect time of year to have no A/C right?
OTW to the Doc, perfect A/c no issues very cold all is good.
30 mins later otw home not one ounce of coolness. Just satans breath.
I cycled through all the settings, hot, cold, auto, sync etc. heat works great; still no A/c
Walmart—> Freon in a can —> removed cover and checked pressure —> it’s in the red with car off
Car on, air on full blast, same pressure reading (in the red) but I can’t hear the compressor
I can hear the cars rpm change slightly but that all so familiar compressor sound is missing.
Next check is the fuses; also read here that disconnecting the battery did it?
also no codes no CEL, it’s a 2014 Z51
how can I test if my compressor is going out? That’s my prediction but I want to try everything before spending that 200$ for the diag
OTW to the Doc, perfect A/c no issues very cold all is good.
30 mins later otw home not one ounce of coolness. Just satans breath.
I cycled through all the settings, hot, cold, auto, sync etc. heat works great; still no A/c
Walmart—> Freon in a can —> removed cover and checked pressure —> it’s in the red with car off
Car on, air on full blast, same pressure reading (in the red) but I can’t hear the compressor
I can hear the cars rpm change slightly but that all so familiar compressor sound is missing.
Next check is the fuses; also read here that disconnecting the battery did it?
also no codes no CEL, it’s a 2014 Z51
how can I test if my compressor is going out? That’s my prediction but I want to try everything before spending that 200$ for the diag
Instructor
Joined: May 2018
Posts: 106
Likes: 18
Yeah happened to me AC was intermittent a few times over the months and then one day it just never blew cold again. From what my mechanic told me it’s not the compressor it’s the little solenoid switch to activate it attached to it. He just replaced the whole thing anyways since the labor to get to it is quite heavy. Ended up being $1600 total with parts.
Thread Starter
Intermediate
Joined: Apr 2024
Posts: 27
Likes: 2
Update
Saw something about someone cleaning out a hire radiator or fan with a water hose which opened up a stuck valve (very bad description of the post)
then I read here that someone had success after switching it to the floor vents on high (even worse description)
ok so it’s not cold cold but switching it to the floor vents on high did something it’s blowing cool air, what does this mean?
then I read here that someone had success after switching it to the floor vents on high (even worse description)
ok so it’s not cold cold but switching it to the floor vents on high did something it’s blowing cool air, what does this mean?
Safety Car
Joined: Dec 2012
Posts: 3,875
Likes: 1,875
From: St. Louis Metro East IL
Time for service. Low refrigerant pressure will lock out the compressor. I've been told that you can't charge the system using pressure gauges. A shop will evacuate the system and recharge a certain weight of refrigerant per the car's spec. There is a lot less refrigerant in modern cars than in years past.
Ron
Ron
Race Director
Joined: Mar 2010
Posts: 16,031
Likes: 831
This is not the Chevrolet ownership experience we strive for. Our team would like the opportunity to learn more about the HVAC on your Corvette and investigate ways we can potentially assist. When you get the chance, please send us an email to socialmedia@gm.com. Be sure to include your Username and Forum name in the subject line, then provide additional details about your experience in the body of the email. We look forward to your contact.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,669
Likes: 4,093
From: Cape Coral, Florida
Seek out a professional shop as they have the right equipment and will find a leak if you have one and then add the correct amount of refrigerant…too much is just as bad as too little.
Team Owner
Joined: Jul 2004
Posts: 28,502
Likes: 3,302
From: Hartford WI
Time for service. Low refrigerant pressure will lock out the compressor. I've been told that you can't charge the system using pressure gauges. A shop will evacuate the system and recharge a certain weight of refrigerant per the car's spec. There is a lot less refrigerant in modern cars than in years past.
Ron
Ron
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Best of luck with the repairs. Sucks when the A/C doesn’t work this time of year.