Air Conditioning is not blowing cold air
Thread Starter
7th Gear
Joined: Feb 2006
Posts: 7
Likes: 0
Air Conditioning is not blowing cold air
Need some advice on what to do next
1999 coupe, 6 speed, manual a/c
All fuses are ok. With engine off and cold - low pressure is 55 and high pressure is 60. With engine running (1000 rpm) and AC on - the compressor is turning (not just the clutch), air temp is 85 -88 degress, humidity is 54 to 60, low pressure is 22, high pressure is 125. Pressure does not seem to change as rpm is increased. Does anybody have any suggestions on what could be wrong or how to fix it? Also, could somebody recommend a good vette mechanic in Jacksonville, FL. I'm trying to avoid the Chevy dealer. thanks
1999 coupe, 6 speed, manual a/c
All fuses are ok. With engine off and cold - low pressure is 55 and high pressure is 60. With engine running (1000 rpm) and AC on - the compressor is turning (not just the clutch), air temp is 85 -88 degress, humidity is 54 to 60, low pressure is 22, high pressure is 125. Pressure does not seem to change as rpm is increased. Does anybody have any suggestions on what could be wrong or how to fix it? Also, could somebody recommend a good vette mechanic in Jacksonville, FL. I'm trying to avoid the Chevy dealer. thanks
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,144
From: Dyer, IN
Need some advice on what to do next
1999 coupe, 6 speed, manual a/c
All fuses are ok. With engine off and cold - low pressure is 55 and high pressure is 60. With engine running (1000 rpm) and AC on - the compressor is turning (not just the clutch), air temp is 85 -88 degress, humidity is 54 to 60, low pressure is 22, high pressure is 125. Pressure does not seem to change as rpm is increased. Does anybody have any suggestions on what could be wrong or how to fix it? Also, could somebody recommend a good vette mechanic in Jacksonville, FL. I'm trying to avoid the Chevy dealer. thanks
1999 coupe, 6 speed, manual a/c
All fuses are ok. With engine off and cold - low pressure is 55 and high pressure is 60. With engine running (1000 rpm) and AC on - the compressor is turning (not just the clutch), air temp is 85 -88 degress, humidity is 54 to 60, low pressure is 22, high pressure is 125. Pressure does not seem to change as rpm is increased. Does anybody have any suggestions on what could be wrong or how to fix it? Also, could somebody recommend a good vette mechanic in Jacksonville, FL. I'm trying to avoid the Chevy dealer. thanks
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Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
Looks like your low on 134a. Pressures should be higher. Check out this link and recheck your charge accurately, using plasticfans chart. If you are indeed low, you may want to use some dye in the system to locate the leak, so you can get it repaired.
http://forums.corvetteforum.com/show...ghlight=ac+101
http://forums.corvetteforum.com/show...ghlight=ac+101
