Hi All,
I have a 2001 Ford Taurus that I have been very happy with until recently. A few weeks ago, when it first started to get hot, I turned on my air conditioner for some relief. The air was nice and cold for a few minutes, then all the sudden I could tell it was no longer working, since the air started to get warm and humid. Further investigation helped me realize that the compressor was not engaging.
Thinking that maybe the compressor was just low on oil I bought a can of R134 and filled it back up to the safe level. The air conditioner was blowing nice and cold afterwards, although I only ran it for 10 mins or so in the driveway.
Yesterday I took the car out for a spin on the hottest day of the year so far (90F or so). The air conditioner was nice and cold for about
10-15 minutes, and then the compressor kicked off yet again and the cabin heated up to unbearable temps. I stopped in at my local parts store and the tech there put a gauge on the low side of the system and confirmed that the A/C pressure was correct. (I believe it was about 35, but I dont remember exactly. It was in the green) Whenever we tried adding coolant, the pressure would go up a little, and then settle back down to 35 or so. It seemed impossible to overfill.On the cooler days, this doesn't seem to happen. Only on the warmer days have I noticed it. After it shuts off, the only way I can seem to find that gets it going again is to turn off the car and let it sit for a bit before it will eventually kick back on.
I'm wondering if anyone has any ideas of where to look. I don't know if I have a leak, or if some other part is out of whack. It seems strange to me that it works till it warms up, and then quits. If I had a leak, I would think it would leak out to the point where the compressor no longer engages. I know they have sensors in them that disengage the compressor when the levels get too low.
I'm hoping that I don't have to pay big bucks at a local repair shop to get this fixed. Since I usually do my own work, I want to make sure I do my own due diligence first. Thanks for any help in advance.