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
1 answer 2 comments
ANSWER by on June 07, 2013
Define "less than normal". How much less?
COMMENT by on June 09, 2013
Not enough?
COMMENT by on 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