I have a 2006 Taurus. My compressor was drawing to much power and blowing a fuse, which also took out the idle regulator, stalling the car when it tried to drop down to idle. The compressor was replaced, which fixed the problem. Took it from Pittsburgh to NYC to Baltimore and back, using the AC
the whole time, with no problem.
Now, all of a sudden, whenever I run the AC
, after about 4 minutes, the "check charging system" warning pops up, and the battery light pops on. It stays on for about 20 seconds, and both warning and light disappear. This will continue to happen every 2-3 minutes or so until I shut the AC
off. If I just run the fan, but no AC
, same thing, but with longer time intervals. If I don't turn on the AC
or fan, I never get the warning or the light.
I never had this specific problem before, but I did have to change the alternator a few years ago.