I’ve owned a 2008 Chevy Impala for about 7 months. It’s at about 115,000 miles. It runs great…haven’t had any problems out of it. So far. But there are a few things that concern me.
When I start the car, I hear this squeaking noise under the hood. I do not always hear this—it seems as if it may be tied with cold weather, like it’s something that only occurs in the morning. But regardless, it seems abnormal. It subsides after a few minutes. The other thing I am noticing is that normally within the first 10 or 15 minutes of operation, if the car is at a stop light I’ll hear some strange humming accompanied by vibrations. Sometimes the lights will flash faintly when this happens.
When I first purchased the car, I had a mechanic check it out. The engine, transmission, radiator, etc. were in excellent condition. I’m hoping that this is not anything serious, but I figure these are still sounds that I should not be hearing with a car in good condition. Any advice would be greatly appreciated.