1996 Other Oldsmobile Models Engine Cutoff Noises

Tiny
UNDERACHIEVA
  • MEMBER
  • 1996 OLDSMOBILE
Noises problem
1996 Other Oldsmobile Models 4 cyl Wheel Drive Type unknown Automatic 140000 miles

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.
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Sunday, March 16th, 2008 AT 4:42 PM

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Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
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
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Sunday, March 16th, 2008 AT 4:51 PM

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