Hi, apologies for the quick post and not searching the forums since I'm making arrangements to get a tow. I'm getting a high pitched squeal coming from the engine during idle and seems to disappear when driving. I also noticed that it was idling inconsistently last few days and thought it might be the change in weather. It's not bad but slightly rougher than usual. Can you diagnose my symptoms before it gets towed to the dealer? Thanks in advance!