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Posted on Jan 02, 2017
SOURCE: AC not cool
Check the a/c lines entering the firewall. Large hose should be cold and small line warm-hot.If o/k, may have vacumm leak to underdash control. If vacumm is lost the system will revert to heat and defrost. Could also be the air blend door is stuck. Maybe something dropped down defrost vent on dash. If this helps Please rate
Posted on May 01, 2009
SOURCE: 2002 Saturn not cooling
well you cant just put refrigerant into a system. 1st you had a broken line . so the compressor probally pumped all its oil out and you lost the gas. 2 after such an incident you have to have the system evacuated to remove all the air out of the lines and system. if there is any air or moisture in there it will not run right due to freezing and without oil in there you will destry your pump . i suggest that you take it to a garage and get it evacuated be fore you proceed. then you can refill it. also on your vechile it should tell you how much goes in there like 1lb 6oz and there is an amount written on the can so go by that. putting more in there will do more harm then good and cause alot of headaches and sweating. good luck have a good day
Posted on May 06, 2009
Have a code reader or scanner put on the car to erase all codes,this should reset the ac system circuit.Also check the low side clutch cycle switch,it may be the problem.
Posted on May 01, 2010
Testimonial: "Tried those but thanks for the fast responce"
Did you replace the expansion valve?
Also try adding just a little more freon and see if that makes a difference....is there a sight glass you can view with the system activated to be sure you have it completely air free?
Posted on Jul 21, 2010
SOURCE: 2004 Altima won't cool.
You do have the compressor On while you are charging the system, right? Since you have 30 psi with the compressor off, and 0 psi with the compressor On, this tells us your compressor is working, and you are nowhere near charged. Keep filling, until your low side gauge indicates full/normal charge. Do
NOT overfill, it won't get cooler. It would get warmer and it will
eventually damage the compressor. If your system was evacuated, you may need anywhere from 3-5 cans of Freon to fill the system, depending on the size of the cans. If your lines are freezing, there may be a restriction. I hope you got all the moisture out before charging, by pulling a strong vacuum in the system. I also hope you didn't release any old freon into the air.
If you are not EPA MVAC Certified, and a standard recharge isn't fixing the problem, I recommend you get an EPA MVAC certified technician to fix your A/C.
Also keep in mind that the only accurate way to charge an auto a/c system is to safely and legally recover and evacuate all the existing gas from the system, then hopefully after a successful leak repair, carefully weigh-in an the exact amount listed on the a/c factory specification label placed under the hood by the factory to assist the service technician, which, again may leak-out if the needed repair is not performed properly.
Posted on Mar 19, 2011
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