New ECS kit, now sometimes AC problem
Thread Starter
Instructor
Joined: Feb 2008
Posts: 150
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New ECS kit, now sometimes AC problem
I just recently had A ECS kit installed on my 08 m6 vette, now I have a problem with my ac working correctly all the time, it will work fine several times in a row then it will be working fine and will blow luke warm air, this seems to happen when I am sitting in traffic, I took it to the dealer to see what they thought and they concluded that there was not enough air getting to the condenser, which is now covered by the intercooler, so the cooling system is running about 80 degrees hotter that normal which in turn raises the cooling system pressure and causes the pressure switch to kick off the compressor, the dealer also said that down the road the higher pressure in the system may lead to other system failures. So my question is has anyone else had this problem ( I am sure I'm not the only one ), the tech at the dealer did say the cooling system was 2 tenths of a pound over charged from the factory and he fixed that, so well see. Please let me know if you have had this problem and if so what you have done to correct it. thanks.
Melting Slicks
Joined: Feb 2006
Posts: 2,007
Likes: 1
From: Eastern PA:ECS Paxton Novi 1500(676rwhp,585tq on stock engine),LG headers, 410's, Corsa Sports, ECS Alky Kit
St. Jude Donor '08-'09
If its installed properly you shouldnt have any problems with the AC. Bumper to bumper traffic in mine 2 weeks ago it was 98 degrees and my AC was blowing very cold. I've never had any issues with mine at all.
Le Mans Master
Joined: Oct 2004
Posts: 8,615
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From: Haymarket Virginia
Le Mans Master
Joined: Feb 2002
Posts: 9,883
Likes: 518
From: Bergen County NJ
I think once the dealer sees his "extra help" they are gonna tell him to hit the road. Unless he knows them very well or has a personal relationship with them.
Premium Supporting Vendor
Joined: Oct 2004
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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
We do not see that problem here, the problem though with going to the dealer is that no matter what it will always be the aftermarket's part fault no matter what in their opinion. I would go to a good general automotive shop and see what's going on with it.
Le Mans Master
Joined: Feb 2002
Posts: 9,883
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From: Bergen County NJ
Safety Car
Joined: Jan 2006
Posts: 3,713
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From: Littleton CO
Check to see if your temp on the heating system is reading the correct temp when this happens? I found that once in a while since I had my kit installed my outside temp sensor will think it is a lot colder then it is like say -20 to 10 degrees out when it is really 80. When it reads low like this I get warm air. I think it does that because it doesn't feel it needs to turn on the condensor when it is below 30 degrees. I could be wrong.
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Burning Brakes
Joined: Jul 2005
Posts: 779
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From: Bloomingdale Illinois
Get some Refrigerant removed and it will blow ice cold all the time.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
Melting Slicks
Joined: May 2008
Posts: 2,377
Likes: 18
From: Fresno Ca
Get some Refrigerant removed and it will blow ice cold all the time.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
Last edited by cencalc6; Jul 9, 2008 at 12:55 AM.
Safety Car
Joined: Oct 2001
Posts: 4,945
Likes: 0
From: Dallas/Valley Ranch TEXAS!!!
Get some Refrigerant removed and it will blow ice cold all the time.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
... as I agreed earlier!!!
Guest
Posts: n/a
Get some Refrigerant removed and it will blow ice cold all the time.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
You were borderline overfilled before the S/C install .
What is happening now is the condenser is getting hotter due to the decreased air circulation being behind the intercooler. If you had A/C gauges hooked up to your car when it blows warm you would notice the high pressure side extremely high. High enough to trip the high pressure cut off switch and shut your A/C compressor down.
Removing a little R134A from your system will lower the high side pressure preventing your compressor from shutting down. You will not lose any cooling effectiveness from doing that.
The systems in our cars are very efficient and use/need very little freon to cool. Less than 2 lbs.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
I just experienced this. Outside temps broke 100 for the first time yesterday and my cooling system had a hard time keeping up although ECT never exceeded 210 degrees. My AC stopped blowing cold as well and since I'm logging AC Pressure voltage I could verify that I was exceeding the safety boundries. I have an '05 and had already let some freon out last season and will try letting out a little more.
Just take the low side cap off (smaller of the two) and stick a screwdriver or the like in it to depress the shrader valve. Put a rag over it so it doesn't spray everywhere. Try a few ~1-2 second pfffts. Smaller is better.
Just take the low side cap off (smaller of the two) and stick a screwdriver or the like in it to depress the shrader valve. Put a rag over it so it doesn't spray everywhere. Try a few ~1-2 second pfffts. Smaller is better.
Drifting
Joined: May 2003
Posts: 1,815
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From: Eventus stultorum magister. Texas
St. Jude Donor '08-'09-'12
Yea depends on the dealer..
Last edited by Doubletap; Jul 16, 2008 at 04:02 AM.