It's been almost 10 days to have this. Car has 11000 miles on the clock and been serviced at 10500. There was no noise when it's been in service. This problem started recently. However there is no problem with acceleration or pull (or I don't feel it) Have a feeling that is HPFP... Some says even if it's been replaced still there will be a problem after all... First, I noticed in the car. Recorded eventually. Especially the noise in the car, is it because of the chirping? http://youtu.be/pVTdcKXIB98