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03-19-2018, 11:22 AM | #1 | |
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00 Grand Prix GTP intermittent noise.
Can anybody tell me what is making this noise? https://www.youtube.com/watch?v=W5EIPM2FA-A
I know it's not the Supercharger, PS, or any of the idler pulleys. |
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03-20-2018, 05:39 AM | #2 | |
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Re: 00 Grand Prix GTP intermittent noise.
Sounds like a dry pulley bearing-- get under the hood and listen closely- could be idler or tensioner bearing- perhaps power steering pump or even a/c pulley bearing. Have someone hold rpm at critical noise making rpm and watch for vibration. Or sometime I use a 3 ft long rubber hose- to put next to each component and other end in my ear- works pretty good for isolating problem childs....should be able to feel the vibration with a stout rod as well.
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Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles- |
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03-20-2018, 08:22 AM | #3 | ||
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Re: 00 Grand Prix GTP intermittent noise.
Quote:
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03-20-2018, 10:34 PM | #4 | |
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Re: 00 Grand Prix GTP intermittent noise.
May have to remove one belt at a time to isolate it...
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03-22-2018, 09:25 AM | #5 |
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Re: 00 Grand Prix GTP intermittent noise.
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07-02-2019, 11:43 AM | #6 | |
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Re: 00 Grand Prix GTP intermittent noise.
Just realized I never updated with the Fix. This ended up being the AC Compressor Clutch/Bearing, so I replaced the whole AC Compressor with a Delphi unit.
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