I have a squealing noise that just developed on my van it sounds like a belt squeal and only happens under a very light acceleration for example if i am maintaining speed and give it just a little gas it will squeal. Under anything more than part throttle it does not happen and also in netruel it does not happen usless i rev it very high and then it is only a very slight noise. Does anyone have any ideas as to what it could be. it is a 2007 EX-L RES with 64K miles. The belt looks like it is tight.