Mechanics

CHEVY ENGINE KNOCK

2001 Chevrolet Malibu

My 2001 chevy malibu has been knocking for around a yr and I took it to get looked at the other day and they said it was a piston hitting the head and that there was no way of fixing it my? Is what would cause this and is there any way of repairing it
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Crzydreams1294
February 10, 2011.



First, how did they determine a piston was hitting the head? It could be a rod or main bearing, cam bearing. Also, it could be caused by carbon build up on the piston that there are cleaners for.