A/C Issue, 2000 F150 5.4

[RICOCHET]

Is there a relationship between the the aletnator and the AC system? I ask because recently my alt light is coming on at a more frequent basis every day. When it's on the AC blows hot but when the alt light goes out the AC works fine. I first thought the serpentine belt was toast and not spinning both pullies but both are spinning fine and have plenty of tension on the belt. The altenator is squeeking a bit and seems to have a loud electrical ticking sound like it's shot. I still have to take a reading of it but wondered if it was shot that it would also affect the AC. ****

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[torkum]

If the alternator bearing is starting to go bad that could be the problem.

[dayalalito01]

yes mine did that before the alt died, repalced and all is well

[Bugman1400]

I'll bet a hundred bucks that your alternator is going bad and the voltage is dropping to a level that won't allow your clutch to stay engaged.