When you say the AC quits do you mean the interior blower shuts down or does the compressor stop cycling ? DMC Joe / DeLorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ---------- > From: fritz1@xxxx > > My a/c stops after it has been running on high for a period. Doesn't > seem to do this at any other time except when run at full blast. > > Could this be caused by an under charged system? > > Fritz