My '92 2.0l CDiS b202 non turbo has developed a whining/whirring noise coming from drivers side of the engine when cold. (The drive belt is properly tensioned and is just a few months old.) The noise vanishes almost as soon as the stat opens and does not return until it starts from cold again...

My '92 2.0l CDiS b202 non turbo has developed a whining/whirring noise coming from drivers side of the engine when cold. (The drive belt is properly tensioned and is just a few months old.) The noise vanishes almost as soon as the stat opens and does not return until it starts from cold again...