Aerio L4-2.3L (2006)
hearing among 16 of them, check as follows.
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Stop engine and remove cylinder head cover.
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Push adjuster downward by hand (with less than 20 kg or 44 lbs. force) when cam crest is not on adjuster to be checked and check if
clearance exists between cam and adjuster. If it does, adjuster is defective and needs replacement.
