Question about 1996 Pontiac Grand Am

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Engine knockin sound

I have a1996 grand am se. i have the same problem but i did not run low on oil. i figured it might be a stuck lifter so i put atoumatic transmission fluid in it to clean everything out and i am going to give it a oil change now for i bought it used and do not know when it had one last. Do you think this will make it stop or if not how much will it cost me to fix?

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If it is a knocking sound, most likely a rod bearing or thrust bearing is bad, if it's too bad, the journal on the crankshaft might have gotten damaged also.
If it is a clicking sound, a valve lifter is bad, need to replace it.
In either case, tranny fluid will not fix the problem.
Different repair shops charge different rates, I can't give you an exact amount, But it will be in the hundreds, if not more.

Posted on Jul 14, 2009

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If it's too bad and has been neglected too long (dont know if it has or not) an oil change may work to cushion the knocking (yeah probably a lifter) but as far as fix it. It could be up to $500-1000 to rebuild the engine unless you want to DIY. Best bet would probably be a used engine if you want it to be fixed fixed. Hope it helps.

Posted on Jul 14, 2009


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