Fawkes car accident, replace the power steering pump, a sizzling reason

   The customer just a few days ago I bought a Fawkes electronic power steering pump, after installation, a sizzling sound engine barns, (in a 4S detection is of pump failure, ridiculous.), after the professional analysis, confirmed the following reasons: 
    The vast majority of electronic power steering pump sound. The design is in the low speed of electronic power steering pump with high pressure (pump high speed), a speed above provide low oil pressure, so when in idle power steering pump of high-frequency sound. This is normal.
    If you can hear clearly "Zizi" sound in the cab, probably because the reasons caused by the installation of the booster pump: pump body, such as the pipeline on the body, the vibration of the voice spread to the car, as long as the adjustment of the pump and the pipeline position can eliminate excessive noise. This can often be seen in the car accident repair after.