My car is equipped with one of those electronic air conditioner/temperature controls. My airconditioner was working fine, blowing cold air but i could tell it was getting low on freon. I added a can and folllowed all instructions - keep car running, turn on air conditioner, (hit "AUTO" and turn temperature down as far as it can go: 18 degrees celsius), i emptied the can, but then it stopped blowing cold air completely. In fact, there does not seem to be any difference when I run the blower ("ECON") and the airconditioner (AUTO). I checked the fuse in the fuse box and its not blown. Please help...
Simply "adding a can"is a good way to end up with non-functional A/C. the typical system has high/low pressure switches that enable/disable the system. you need to be at the correct volume of refrigerant as specified on the sticker under the hood. i recommend using the proper equipment, evacuating, pulling a vacuum, and then refilling the system with the appropriate amount.
a pressure reading is a good way to verify the pump is functional as most are 50/150 area systems, but the actual amount in critical. too little, low pressure switch disables; too much high pressure switch disables. you need a vacuum pump to do what i was referring to. they're kind of pricey, so if this is a one time deal for you, its cheaper to just have a shop do it. if, on the other hand, you have a personal fleet or intend to get licensed and service the neighborhood, it might be a wise investment. it empties the a/c system of refrigerant, moisture, etc. then you are starting with a fresh palette as it were, once you go to refill. dye is never a bad idea either. that refrigerant went somewhere.
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I thought I had the proper equipment as the refill system cam with a gauge on the hose for pressure reading. I will try your suggestions but I understand all the steps except for "pulling a vacuum". Can you elaborate what that refers to doing? Thanks again.
Thanks. I guess its to the shop then, unless I can bleed the system by depressing the intake on the hose... just kidding.
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