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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-27-2005, 08:27 AM   #1
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Can a bad water pump make your car sound like garbage? The reasom im asking is because i had an 92 Bonnie and the water pump worked fine, no over heating or leak but the car sounded horrible. I changed it and it was as quiet as a whistle. Now the */C 3800 Riviera i have sounds like GARBAGE until it warms up then it quiets down. I was wondering could that be the problem, I dont wanna take it off because it seems harder to do than an regular 3800 because of the pully'* and belts. Any suggestions?
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Old 04-27-2005, 09:58 AM   #2
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For a water pump to make a lot of noise like you are describing it would seem the bearings would be gone.

Either way I think it would need replacing soon. On your current situation try removing the belt and starting it for only a minute (no cooling). Might be harmonic balancer.
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Old 04-27-2005, 10:23 AM   #3
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The balancer wouldn't quiet down after the car is warm. The only thing extra you'll have to deal with on the Series I L67 is one extra belt. That'* it. On an NA, you might want to remove the alternator, but you don't have to.
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Old 04-27-2005, 10:54 PM   #4
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Maybe a belt tensioner bearing?
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Old 04-27-2005, 10:59 PM   #5
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There is also the idler pulley
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