I have a2009 Dodge Caliber SXT with about 86,000 miles. Sometimes when I accelerate I can hear a whining noise and then when I let off the gas it stops. I don't hear it all the time and sometimes it's loud and sometimes it's less noticable.
You may be hearing the stator in your alternator beginning to fail, you can remove the alternator and have it bench tested at any auto parts store with such capabilities.
〉 Answered on Aug 22nd, 2014 by Amanda J. Pierce, MBA "AJ", Certified Mechanic, Project Coordinator; Primavera Scheduler at VIGOR Alaska Industrial Shipyard & BizzM3ch Solutions
I recommend that when you take it into the shop you ask that a technician go in a test drive with you so you can point out the noise. This will save time and money.
〉 Answered on Aug 22nd, 2014 by Amy Mattinat, Owner and Author at Auto Craftsmen Ltd
A CVT (Continuously Variable Transmission) does not shift like a conventional one. There is a normal whine when you are accelerating that goes away when you get to speed. If you have owned the car a while, and this is a new noise for you, take it to a dealership or transmission shop to have them diagnosis it. There were some problems with the output shaft bearings on this vehicle that were noted in different forums. Have it looked at before the problem becomes worse.
〉 Answered on Aug 22nd, 2014 by Gail Dunn, Owner at Women's Automotive Connection