humming sound when idling

1991 HONDA ACCORD
230,000 MILES • 4 CYL • 2WD • MANUAL
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NIDAL_2
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Hello everbody
i have changed my timming belt with all the related parts to be changed during this job(timing belts,water pump,tensioners....)but when assembling there was a humming sound when idling any advice on this isue
waiting for your advice

thanks
Jun 24, 2011 at 3:41 PM
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KHLOW2008
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Was the noise present prior to replacement of the parts concerned?

Try removing the belts and running the engine briefly to eliminate the possibilities of the noise being one of the driven components.
Jun 24, 2011 at 5:08 PM
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NIDAL_2
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hello,
the noise was not there before changing the prats it appeared after the parts were changed. note:(all the parts that were chabged are brand new.
Jun 27, 2011 at 5:27 AM
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KHLOW2008
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The alternator, compressor and power steering pump can emit humming noises. Recheck the belt tension. Overtensioning the belts can result in humming noises.
Jun 27, 2011 at 12:12 PM