I am hearing knocking noise from my engine. The engine oil was less than normal on 2003 Nissan Pathfinder

This has been topped but the noise persist. What should I do?

by in Garnet Valley, PA on June 07, 2013
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1 answer 2 comments
ANSWER by , June 07, 2013
Define "less than normal". How much less?
COMMENT by , June 09, 2013
Not enough?
COMMENT by , June 11, 2013
The noise is a little above normal. The noise is coming from the left hand side of the engine when you are facing it. Regards, Malaka