have a p011 code is this the cam sensor and what does it consist of in replacing on 2002 Nissan Altima

car makes a knocking noise

by in Red Oak, IA on October 10, 2012
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2 answers
ANSWER by , October 11, 2012
ck oil level 1st this is very common whn oil is low or dirty
ANSWER by , October 13, 2012
Along with answer #1 , maybe have 'knocking noise' diagnosed if oil level is okay.May be faulty t-belt tensioner ,or other internal engine problem , making the cam sensor code a secondary issue.