1999 F 250 7.3 2 WD Auto 110 K miles. When my truck is cold in the morning I am getting a little squeak from what appears to be the AC clutch. I could not tell where the noise was coming from tell I noticed that when the AC cycled the squeak would go about 90 percent away. After about 5 minutes the noise is gone till the next time I start it up in the morning. Any thoughts?