humming sound when idling

1991 HONDA ACCORD
230,000 MILES • 4 CYL • 2WD • MANUAL
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NIDAL_2
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  • 11 POSTS
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 8:41 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
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 10:08 AM
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NIDAL_2
  • MEMBER
  • 11 POSTS
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 26, 2011 at 10:27 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
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 5:12 AM
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