Click here to enlarge Originally Posted by auzvectra Click here to enlarge
timing belt could be too tight.
did you replace the water pump at the same time?
I'd tend to agree with that; it sounds like something's trying to spin but it has a heap of lateral pressure on it, which would be consistent with your chain (it's a chain on the 2.2 not a belt I believe) going too hard around the idler pulley or pump wheel.

Who changed your chain?