my car makes a whining noise when i crank it. on 2004 Mercedes-Benz S500

when I crank it this whining sound comes from under the hood....everything else seems to be working find. Its not loosing compressing and the trans is changing as it should. Steering is find....just that noise....any idea what it may be? Thanks

by in Alpharetta, GA on September 26, 2011
2 answers 1 comment
ANSWER by on September 26, 2011
Belt idler pulleys are known to whine.
COMMENT by on September 26, 2011
thank you so are the socond person to give me that response...just wanted to get some feedback before I take it in for repairs...don't want to get "BEAT"
ANSWER by on September 26, 2011
Belts can create a whining sound, but so can the power steering pump. Often times, even if the power steering pump is making a whining noise, the steering itself will still be fine. Its relatively easy to determine and we'd be more than happy to take a look at it. Please call us at 770-876-6956 for an appointment. Thanks, Dennis Eidson Honest-1 Auto Care of Roswell Dennis Eidson

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