The air conditioning on my '03 MCS alternates between blowing very cold for a few minutes and then slowly warming for a while and then back to full cold again. I don't hear any strange noises or change of airflow. Could this be a A/C door problem? I'm not much of an a/c guy so I could sure use some help to understand why my system is acting this way. Thanks for any help!

 

Follow up... I just put a mirror and light on the floor under the compressor to watch the clutch, ran the car for about 10 minutes and the clutch engaged and stayed engaged, the fan came on after a few minutes, and the air was nice and cold the entire time. Guess I'll need to drive and monitor some more.

 

What has the outside temp been? What control system do you have, does it have the "automatic" control setting?

 

The outside temperature was around 90 degrees. And, I do not have an automatic system. Like I said, it was nice and cold and then warmer then cold again.

 

when is the last time you had the a/c charged ?

 

If you have the auto ac system it does this on mine. Without auto ac i dont know if it sets and acts like that to obtain the same temp on and off. Sounds like it does.