A/C Not working!
Joined: Jan 2008
Posts: 1,455
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From: Nebraska
Holy shit there's a lot of bad info here buddy. I'm an ase master tec and I also have the ac relocate lines on my car.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
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Joined: Oct 2005
Posts: 14,614
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From: Denton, TX
Originally Posted by japhethwar' timestamp='1313111542' post='20870454
Holy shit there's a lot of bad info here buddy. I'm an ase master tec and I also have the ac relocate lines on my car.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
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Registered User
Joined: Jul 2009
Posts: 1,344
Likes: 1
From: Roswell
Holy shit there's a lot of bad info here buddy. I'm an ase master tec and I also have the ac relocate lines on my car.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
Second, there saying that the pressure is getting too high because your cooling fans are not coming on. Both fans must work together to remove the heat from the condensor or the high side pressure will spike immediately after the compressor comes on. Too much high side pressure is a sign of either severe overcharging or too much heat in the system. Most likely the latter.
Third completely remove the lines and all fittings, check all the orings and lube them heavily with pag oil before putting everything back together. Have the system vaccuum checked for leaks first, then recharged and checked for leaks again. If the people who are charging the car are dumping in dye to find the leak there most likely not pro's and you need a new shop. Dye is used as a last resort and only in very small amounts to find super slow seeping leaks. Modern freon sniffing equipment will detect a pinhole leak from across the room, dye is crap and only makes a mess.
Fourth, our compressors are not weak at idle, a properly functioning system will freeze your balls off. If your ac sucks there something wrong with it. Something as small as an improper charge of a mere 2 or 3 ounces will make the ac terrible on a hundred degree day.
Fifth, Doolots lines are the shit my car made 41 degrees out of the vents on a 96 degree day.
And Lastly, Any air or contamination in the charging equipment being used will also cause problems with your ac. You would be amazed how many cars I check every day that have been contaminated with air, stop leaks, too much oil, not enough oil, wrong oil weight, etc . Make sure the place working on your car has nice, new, clean equipment, and someone older than 18 who knows what there doing to use it. A quality mechanic should be able to just about completely diagnose an ac system buy a quick reading of his guages. Unfortunately there aren't too many quality mechanics. Sorry for the long post, hope you get it sorted out. If you have any particular questions feel free to pm me.
Hope this helps, good luck with your ac.
First, of all there is absolutely no need to turn on the compressor to properly charge the ac. Modern equipment will charge the system from both the high and low sides without any need to turn on the compressor.
Second, there saying that the pressure is getting too high because your cooling fans are not coming on. Both fans must work together to remove the heat from the condensor or the high side pressure will spike immediately after the compressor comes on. Too much high side pressure is a sign of either severe overcharging or too much heat in the system. Most likely the latter.
Third completely remove the lines and all fittings, check all the orings and lube them heavily with pag oil before putting everything back together. Have the system vaccuum checked for leaks first, then recharged and checked for leaks again. If the people who are charging the car are dumping in dye to find the leak there most likely not pro's and you need a new shop. Dye is used as a last resort and only in very small amounts to find super slow seeping leaks. Modern freon sniffing equipment will detect a pinhole leak from across the room, dye is crap and only makes a mess.
Fourth, our compressors are not weak at idle, a properly functioning system will freeze your balls off. If your ac sucks there something wrong with it. Something as small as an improper charge of a mere 2 or 3 ounces will make the ac terrible on a hundred degree day.
Fifth, Doolots lines are the shit my car made 41 degrees out of the vents on a 96 degree day.
And Lastly, Any air or contamination in the charging equipment being used will also cause problems with your ac. You would be amazed how many cars I check every day that have been contaminated with air, stop leaks, too much oil, not enough oil, wrong oil weight, etc . Make sure the place working on your car has nice, new, clean equipment, and someone older than 18 who knows what there doing to use it. A quality mechanic should be able to just about completely diagnose an ac system buy a quick reading of his guages. Unfortunately there aren't too many quality mechanics. Sorry for the long post, hope you get it sorted out. If you have any particular questions feel free to pm me.
Hope this helps, good luck with your ac.
Thanks a ton guys for seeing this through with me!
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Joined: Jun 2009
Posts: 1,555
Likes: 2
From: greenville sc
You can get pag oil at any auto parts store. It comes in various weights like pag46, 50, 100, 150. Just get 46 to lube the o-rings. Doolots sends you an ounce of oil I believe to replace what you lose when you change out the hoses. If you just added that back the oil level should be fine. However, the dye that the shop put in you car is also oil. That why you use it sparingly if you add three ounces of oil/dye thats already properly charged with oil it will def. cause some cooling problems. The only way to know for sure is to remove the entire system, flush out all the oil, and start from scratch. Thats prob. not necessary for you though. I would just make sure all the o-rings are correct and undamaged. Then take it and have it vacuumed down. This will find any large leaks, if you still have any, immediately. After that, have them charge it while the system is still in vacuum, this will ensure no air contamination. Once its charged, turn it on and make sure both fans are operating properly. If your compressor is good and the fans are functioning properly you should see around 35-50 on the low side and 200-275 on the high side. These readings will vary according to the temp of the car and the ambient air temp, but it should be somewhere in this range. Look at the low side as a measure of the compressors pumping strength and the high side as a measure of the heat stored in the freon. If your oil and freon are close to correct and the mechanical parts are functioning properly it should be super cold. A properly functionaing system will remove about 25degrees of temp from the air passing through the evap. So if its 90 in the car it should come out of the vents at 65 or so. As the interior temp is lowered the vent temp should lower along with it.
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