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Changed compressor in my 1999 Dodge durango..doesn't blow cold

There was a major lead in the compressor on my 1999 Dodge Durango. So, we changed out the compressor, drier, and expansion valve. Then, we vacummed out the lines, added 8oz. of oil and 32 oz. of freon. It is blowing cold, but it doesn't blow cold enough. Before the compressor was replaced it blew alot colder when freon was just added..it just didn't last long. Now, it just won't blow cold enough. What could be my problem??

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If there is a sight glass fitted check for bubbles that means it needs more freon or air is in the system or wrong expansion valve which sometimes can be adjusted, check fans if running well

Posted on Jul 22, 2009

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The valve "flutters" open/close/open/close/etc/etc when in operation. The purpose is to allow the compessor to build up enough pressure to change the freon to a gaseous state. Once you put in the sealer, the valve becomes plugged with the product and cannot seat completely. After this happens, you never get a full phase change because the pressure cannot build up enough. You will experience reduced cooling. Change the Exp. valve and you'll be set. In the future, it is not advisable to ever use the sealer products as this can cause damage to other system parts, and especially the recovery units at the shop.

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