FishinChip
NAXJA Forum User
- Location
- Florida
I just got done ripping down the dash and replacing my heater core, and the more pertinent concern with rising temps in Florida was the evaporator. My AC has not worked in over a year. I charged it last year, got cold for a day then I leaked out. Figured this was the evaporator due to the entire system being replaced before I purchased the Jeep. There were no signs of anyone entering the dash and the evaporator looked factory so I felt like I was on the right track.
Fast forward to today, after buttoning up the console I gave the system a charge (I know the correct way to do it is to put a vacuum on the system but I'm checking for leaks more than anything at this point). The compressor instantly started cycling upon charging (22oz). It was cycling on and off, which mean the system was low but the air was slightly cooler at this point. Not cold, but than hot air. I went ahead and put another can in it (14oz). The compressor is no longer cycling but the air is still not cold.
This is what has me stumped, the evaporator and accumulator are cold as ice. The blower should be blowing the cold air off the evaporator into the cab as cold air if I understand this correctly. The blend air door is suspect, however, as I move the control from hot to cold it is moving. Perhaps it is not moving enough to open up the cold side? About 30-35 degrees. I would think that it would still allow enough cold air, judging from the temperature of the evaporator to still feel cold to the touch but alas it is not.
Looking for ideas of where to go from here. I'm thinking I should take the blend motor off and manually adjust the blend door as a trouble shoot. I am wondering if the blend door somehow got reassembled out of place on the top side allowing too much hot air to get in?
The system seems to be holding a charge. Blend door and blower motors functioning properly. Where the heck do I go from here?
Fast forward to today, after buttoning up the console I gave the system a charge (I know the correct way to do it is to put a vacuum on the system but I'm checking for leaks more than anything at this point). The compressor instantly started cycling upon charging (22oz). It was cycling on and off, which mean the system was low but the air was slightly cooler at this point. Not cold, but than hot air. I went ahead and put another can in it (14oz). The compressor is no longer cycling but the air is still not cold.
This is what has me stumped, the evaporator and accumulator are cold as ice. The blower should be blowing the cold air off the evaporator into the cab as cold air if I understand this correctly. The blend air door is suspect, however, as I move the control from hot to cold it is moving. Perhaps it is not moving enough to open up the cold side? About 30-35 degrees. I would think that it would still allow enough cold air, judging from the temperature of the evaporator to still feel cold to the touch but alas it is not.
Looking for ideas of where to go from here. I'm thinking I should take the blend motor off and manually adjust the blend door as a trouble shoot. I am wondering if the blend door somehow got reassembled out of place on the top side allowing too much hot air to get in?
The system seems to be holding a charge. Blend door and blower motors functioning properly. Where the heck do I go from here?
Last edited: