1996 Other Oldsmobile Models Engine Cutoff Noises

1996 OLDSMOBILE
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UNDERACHIEVA
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Noises problem
1996 Other Oldsmobile Models 4 cyl Wheel Drive Type unknown Automatic 140000 miles
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When I start the engine, it cranks very quickly with no hesitation. Almost too quick, sounds like a flywheel grinding for about a half second before i let go of the key. Also, when I turn the ignition off, the engine cutoff is very abrupt. Sounds like the engine seizes up. No natural (second of wind-down), just 'zzzztt', off. Any help would be appreciated. Thank you.
Mar 16, 2008 at 4:42 PM
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MASTERTECHTIM
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usually when you describe fast cranking it is usually only one thing, no compression. being that your 4 cyl engine has a history of failing water pumps and the water pump is driven off the timing chain my first guess would be a bad water pump that caused timing chain to jump. what you need to do is check for compressionwith a compression tester. get back to us
Mar 16, 2008 at 4:51 PM