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"Installing redesigned chains (Part No. 13028ZK00B, two required) and chain tensioners (Part No. 13070-ZK01A, bank 1; 13070-ZKOlB, bank 2) should eliminate the noise in short order.
Models that are susceptible to the problem and can benefit from the updated valve timing parts are 200406 Altimas; 2004-07 Maxima sedans and Quest minivans; and 2005-07 Pathfinder, Xterra & Frontier trucks."