Auto Answers » View Question
mike 12/25/2012
2009 Mazda CX-9 Sport 6Cyl3.7L - Engine
Engine is making a high whiny noise
High pitch whine upon acceleration
1 Answer
  • Jimm
    Jimm 12/25/2012
    Several possibilities; faulty / worn drive belt tensioner, faulty / worn / slipping drive belt, faulty / worn alternator, water pump, power steering pump bearing. Open the hood and with the engine in Park or Neutral - listen for the source of the sound.

Preview Answer

AutoMD Verified Customer
AutoMD obtained proof this customer interacted with the shop.