Need some help! I've only owned my 99 Ram 1500 5.2L for about a year (104,000miles) and about a week ago I noticed a high whine from the left side under the hood. It sustains whether idling or in drive. I don't know for the life of me what is causing it, nor can tell where exactly it's coming from. I first thought it was because of the cold, but when it didn't stop after being warmed up, I thought it could be something else. When idle, it almost sings. When in Drive it continues mainly when I accelerate but also at other points too. I'd like to take care of this soon, before it's too late, but would like to have an idea what it is before bringing it in and know what I can anticipate. Any help is greatly appreciated!