Hi -
I have a 98 SC300. The A/C is nice and cold every time I start up the car when the car is cold, but then like clockwork, after about ten minutes, it's just as though I turned the A/C off, and will remain so until I park the car for a while . If I turn off my car and then on again this doesn't make it cold again, apparently the car has to sit until it gets cold again.
Not only is it frustrating because of the heat, but it also won't defrost.
Any ideas what could cause something like this?