AC vents not working!
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 22
Likes: 0
AC vents not working!
Hello all!
I was wondering if any one could give me some insight on my AC vent suddenly stop working.....the air still blows cold but mainly blow out the defrost vent. There is some slight air coming out of the rest of the vents but not like normal. When I press the mode button to redirect air to floor, front, etc..... it doesn't make a different. Does anyone have/had this problem and know the fix?
Thanks in advance!!
97C5 Owner
I was wondering if any one could give me some insight on my AC vent suddenly stop working.....the air still blows cold but mainly blow out the defrost vent. There is some slight air coming out of the rest of the vents but not like normal. When I press the mode button to redirect air to floor, front, etc..... it doesn't make a different. Does anyone have/had this problem and know the fix?
Thanks in advance!!
97C5 Owner
Melting Slicks
Joined: Oct 2004
Posts: 2,385
Likes: 160
From: Orlando FL
Not absolutely positive on this but sounds like the mode button has ceased to operate correctly. It is not sending the message to the mechanicals to operate properly if all modes are failing. Cost for a fix? Sorry I don't have a clue. 
This could be a job for the professionals.
This could be a job for the professionals.
Racer
Joined: Jan 2005
Posts: 335
Likes: 0
From: New York
Another good possibility is that your battery has leaked acid onto the vacuum hoses for the AC vents. Once they have a hole in them I believe the venting defaults mainly to the defroster vent. It happened to me.
Burning Brakes
Joined: Sep 2003
Posts: 1,085
Likes: 0
From: Broken Arrow OK
Originally Posted by iteachflyin
Another good possibility is that your battery has leaked acid onto the vacuum hoses for the AC vents. Once they have a hole in them I believe the venting defaults mainly to the defroster vent. It happened to me.
This is a really common problem. If you have ever had a battery leak this is probably the cause.
Intermediate
Joined: Jan 2003
Posts: 33
Likes: 4
From: Lake Havasu City AZ
Same thing (almost)
I have the same problem only my unit is stuck in the bi-level mode... I have an appointment with my friendly mechanic on Thursday... I did have a battery spill - Added too much water and it flowed out in the Arizona heat on a 300 mile trip. I remoed the battery and flushed the area... I have not been able to locate the vacuum hoses though... Does anyone have any idea where they are hiding???? Also, I read that the a/c would perform cooler if I reduced the freon charge to 1.11 pounds instead of 1.4... Is this true... Itis 120+ here right now and I need to cool things off in my beautiful Corvette!
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 22
Likes: 0
Thanks for the fast response! And actually I have had a battery leak about 6 months ago! One of the post broke right off!
Are the hoses hard to get to below the battery case, meaning are they visible or behind or under some obstruction?
Thanks again in advance!!
97C5 Owner
Are the hoses hard to get to below the battery case, meaning are they visible or behind or under some obstruction?
Thanks again in advance!!
97C5 Owner
Last edited by 97C5 Owner; Jul 19, 2005 at 12:35 PM.
Instructor
Joined: Sep 2003
Posts: 125
Likes: 1
From: Va
Sounds like we are all having the same problem!
My link: http://forums.corvetteforum.com/show...t&forum_id=103
Once I get my lug nut key ordered to get my wheels off, I will have figured out how to get to the vacuum lines, then I just need to figure out how to splice them.
My link: http://forums.corvetteforum.com/show...t&forum_id=103
Once I get my lug nut key ordered to get my wheels off, I will have figured out how to get to the vacuum lines, then I just need to figure out how to splice them.
Melting Slicks
Joined: Nov 2003
Posts: 2,947
Likes: 2
From: Atlanta GA
this JUST stated happeneing to me too! arggg...
i replaced my delco battery, and i had no acid leak at all.. im using another battery (forget the name... got it from NAPA), i really hope its not leaking!
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i replaced my delco battery, and i had no acid leak at all.. im using another battery (forget the name... got it from NAPA), i really hope its not leaking!
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Melting Slicks
Joined: Nov 2003
Posts: 2,947
Likes: 2
From: Atlanta GA
could it be possible that im not getting air through the vents, and only through the defroster just because the freon is low? or do you think that i should replace the compressor too? (its ticking quite a bit...)
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