cm871 475hp whining noise

[Braycross]

I have a new problem. Seems like a whining on driver side of engine. You can hear it more on idle. No codes or nothing. Power seems to be good.

[gearhead]

check boost line feeding aircompressor. the 90 rubber hose.

[snailexpress]

(03-21-2016 )Braycross Wrote:  I have a new problem. Seems like a whining on driver side of engine. You can hear it more on idle. No codes or nothing. Power seems to be good.

Whining on driver side most likely it's power steering pump. When last time did you change power steering filter?
Fuel gear pump could produce whining noise too.
And finally, not so rare as it seems to me starter going ON with engine running.
Mr. iRonin can tell you more about last.

[Waterloo]

Check your pulleys too... I just replaced the idler arm pulley next to my A/C compressor, it started out as a whine, could not isolate it, and then went to an obvious bearing sound, that is when I found it and replaced it. You will need to pull the belts to inspect them.

[Rawze]

He may be referring to the all to familiar sound of the gear train whining in the front of the engine. When it becomes as loud or louder than the engine, it is time to replace your oil pump.

[Coco620]

I spray wd-40 on the pulleys w truck at idle 1 at a time to find which ome it is,just a thought