I was driving on the highway last week and wanted to open the car up, so on the next straigtaway, I punched the gas and got the car up to 140mph in 6th gear. As I got to the 140 mark, all of a sudden I hear the this really high pitch noise. I let my foot off the accelerator and the noise remained and slowly diminished as the car slowed down.
Now, whenever I drive I hear this high pitch noise as I accelerate. Any idea what this might be? Think I blew a hose or something? I looked under the hood while the car was on and didn't notice any weird noises or sounds.
It also seems now that it takes longer for the turbo to kick in and I only hear the turbo spooling once I get to 4th gear. Think this should be a dealer issue?
Any help would be appreciated.