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Rattling

MajorMilf02

New member
Ok so while driving my 97 grand prix it just shut off. After a while it started back up but the engine was making a rattling noise? Any ideas?
 


How does it run now? Is there a noticeable miss? Any CEL on? Is the rattle coming from the top end or bottom end more?

It does sound like you either broke a valve spring and dropped a valve and/or destroyed a piston.
 
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