whining noise when I accelerate, sounds like it comes from the front of the car on 2007 Jeep Patriot

problem just started, whining gets louder as I accelerate

by in Palm Coast, FL on November 14, 2013
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2 answers 1 comment
ANSWER by , November 14, 2013
possible idler or tensioner pulley,use a mechanic's stethoscope or a long screwdriver and carefully while the engine is running touch the end of the screwdriver on the pulley center bolt and usually you can tell which bearing is out right away. This is just a guess because I haven't heard it myself and there are alot of moving parts under the hood.
COMMENT by , May 23, 2014
I am having the same problem. Replaced tensioner and all rollers, (found 1 bad roller) also replaced P/S pump (had about 1/4" pulley play). After putting it back together it was very disappointing to find there was no change in the loud whining and tapping noise. However, I did notice that the A/C compressor clutch always stays engaged constantly. Appears this is an A/C compressor and/or clutch issue. Double check your compressor/clutch, make sure it's operating properly. Should disengage when A/C is turned to the off position.
ANSWER by , November 15, 2013
Noise consistent with engine speed or vehicle speed? Bad tire wear or wheel bearing? Rotate tires to help rule them out as cause.