I have a 2000 ssei. There is a noise coming from the 3800 supercharged engine that increases with acceleration. If I stomp on it, the noise really gets loud. It sounds almost like something is loose, like a fan. But it seems to be coming from the center of the engine. Any ideas would be appreciated.
Does the sound go away after the motor warms up? Does it sound like a clicking noise? I had a similar problem that disappeared after I had the lower and upper intake manifolds replaced. It also was more prevalent during cold weather and as it is summer now I cannot be sure that the problem is completely solved but its a place to start. I'm not a gearhead, but that was my experience with my '01 SSEi.
Thanks for the replies. It sounds more like a clunking sound and it is definitely a rotating part, almost like a cover being loose on a house fan. If I ease into the acceleration, it'* not as bad. I did have the upper and lower intake gaskets replaced about 15k mi. ago.