My 1994 GL with 3.8 engine is making what I'd call a high-pitched "chirring" or fluttering chirping noise in the area behind the alternator, somewhere on top of the engine, even when the car isn't moving. It starts as soon as the car is started up. It doesn't seem to be coming from the belt or any of the pulleys it runs. From what I've been able to gather from reading the thread here about the infamous Dorman camshaft synchronizer, my model doesn't have a camshaft synchronizer/positioning sensor assembly since it has a distributor, so presumably the sound I'm hearing isn't due to that, and it doesn't sound the same anyway. Any educated guesses? If it helps, I can try to post a YouTube video with the sound.