Dec 09, 2015 · If you notice the light after an oil change, something else is wrong. Your mechanic has the necessary parts to run tests and get to the bottom of what’s wrong. Five of the most common things we see from check engine lights are: 1. The Oxygen Sensor Needs to be Replaced. Your oxygen sensor makes sure your car is burning fuel efficiently. 2) I noticed after driving it around a bit that the squeaking sound turned constant and also started after the car was running for a bit, but the tensioner wasn't bouncing at all (see video: 2) Constant Squeaking Sound.MOV). 3) Next, after about 50 miles, I noticed the tensioner was bouncing again.
In or around August of 2014 my brakes began a very loud squealing after car had sat for a period of time. Dealer mechanic said there is nothing wrong with brakes and it is just the nature of the car.