MAZDA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DUE TO WEAR ON LOCK PIN HOLE IN VVT ROTOR OR BREAKAGE OF VVT CASE, LOUD TICKING NOISE (KNOCKING/RATTLE) IS HEARD, FROM TIMING COVER AND/OR VALVE (CYLINDER HEAD) COVER, WHEN ENGINE IS STARTED AFTER COLD CONDITION. *PE
