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Eighty Eight Includes the '97-'98 Regency and '96-'99 LSS Models |
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12-20-2010, 11:16 AM | #1 | |
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1990 OLDS 88 Rattle
I have a 1990 olds 88 with about 118,000 miles.
There is a rattling noise at idle and while driving; it sounds very similar to the sound when my water pump failed (2 month ago). The sound goes away with the serpentine belt removed. I’ve tried using a stethoscope to try to isolate the sound. The water pump and, ac, seem a bit more quiet than the power steering pump and alternator. The rattling seems to be about the same volume on both of these. The power steering pump does click a bit when I rotate it back and forth…not sure if this normal or not. The sound does not seem to be coming from the Harmonic Balancer…. Any ideas would be appreciated Thanks |
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12-20-2010, 11:29 AM | #2 | |
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Re: 1990 OLDS 88 Rattle
Idler pulley, tensioner, it still could be the balancer, though. No way to pin it down from here, obviously.
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12-20-2010, 11:51 AM | #3 | |
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Re: 1990 OLDS 88 Rattle
Last edited by L22; 12-20-2010 at 02:07 PM. |
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12-20-2010, 11:59 AM | #4 | ||
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Re: 1990 OLDS 88 Rattle
Quote:
before(When I replaced Crank Sensor). I had a heck of a time getting that bolt off. |
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12-20-2010, 03:24 PM | #5 | |
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Re: 1990 OLDS 88 Rattle
See if you can move the outer hub on the inner hub, hard I know., maybe remove the inner shield to get to it, belt off of course.
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12-20-2010, 08:40 PM | #6 | ||
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Re: 1990 OLDS 88 Rattle
Quote:
Turns out..... it was the alternator...I didn't pay very close attention to it since it was only a few years old. I took it to autozone and had it tested. It was just as noisy on the testing machine. Thanks for your help |
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