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1.Insert a thin rod into the
positive crankcase ventilation valve from the side shown in
the illustration (rocker cover installation side), and move
the rod back and forth to check
that the plunger moves. 2.If the plunger does not
move, there is a clogging in the positive crankcase
ventilation
valve. In this case, clean or replace the positive crankcase
ventilation valve.
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