I have a '03 H2 and I have noticed the compressor seems to run a lot. If I start the vehicle and leave it in park the compressor will run and then purge and then after a few seconds it will run again until it purges. This cycle goes on up to 10 times and then it settles down and stops. I am thinking it could be a leak or some kind of a sensor problem. Has anyone had a problem like this? How should I go about diagnosing the problem?