Ok i got timing chain replaced at Hall Mazda in virginia beach. Once i got it back about a week goes by and then im crozin along and i hear a knocking. took it back to them and they said it was unrelated to there work. But they said the knocking was coming from oil pan. Could this be a bad Crank bearing? They said the thrust bearing was still good. But how much would it cost to get the crank bearings replaced?
 
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