1998 Volvo V70 GLT 5 Cyl 2.40L
Compressor stops when it is hot and the ambiant temp is hot outside.
The compressor runs fine and cools fine when the out side temp is cooler 70s and below. When the temp out side gets hot 80s plus the compressor runs fine for a while but then shuts off and will not restart for a while 5-10 minutes. Then it will run again for a few minutes and then stops again.
Ken Meyer 8/8/2010
I had the same problem and after rigging the compressor to be on all the time went to a Volvo wizard - who figured it out - turned out to be a bad linear pressure sensor