took the car in for a diagnosis

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, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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SuperHbody
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Re: took the car in for a diagnosis

Post by SuperHbody »

I don't believe it's the timing chain at all. Usually when they go or even skip a tooth, your car would be backfiring and generally running poorly. Since you've had this noise for nearly 5,000 miles I would say it's not that. I would go back over the bolts for the harmonic balancer and make sure they're torqued to spec as that's the only thing I could think of. It's a very unique noise that doesn't sound serious. Do you have a mechanics stethoscope?
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J Wikoff
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Re: took the car in for a diagnosis

Post by J Wikoff »

If you take the oil pan off, you can check slack on the timing chain from below. You might even be able to see the tensioner, IIRC. Maybe even see the alignment dots...?

You'll spend a good day doing the timing cover.
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ad356
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Re: took the car in for a diagnosis

Post by ad356 »

is the series II an interference engine?
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00Beast
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Re: took the car in for a diagnosis

Post by 00Beast »

Not that I'm aware of...
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ad356
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Re: took the car in for a diagnosis

Post by ad356 »

changed the oil yesterday and it looked normal. as far as the vacuum leak goes, the air intake duct was loose
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rustyroger
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Re: took the car in for a diagnosis

Post by rustyroger »

Any developments?. We are curious to find out what the problem turned out to be.

Roger.
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