Question about 1999 Pontiac Grand Am GT
You can fix it. you shouldn't drive the car anymore to prevent damaging other parts. it sounds like a spun bearing, which is cause when the bearing doesn't recieve enough oil. the bearings are usually in a fixed position with the crankshaft rotating between them. the knocking noise is from the bearing wearing down from lack of oil, and they start rotating with the crank.
it might not be worth fixing because the cost of fixing it may be more than what the car is worth.
Posted on Oct 13, 2008
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Posted on Jan 02, 2017
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