3.5 Nissan Engine Noise – Tapping at Cold Start Up
September 5, 2009 Consumer, Drivetrain and Noises, Nissan, Service Writer, Tech/Mechanic 113 Comments© DenLorsTools.com Summary: In this article we point out a common problem with Nissan automobiles equipped with the 3.5 Liter engine that causes engine tapping noises typically on cold start up. The engine has variable timing cam sprockets, three timing chains, three tensioners and three guides. Vehicles subject to similar issues may include Nissan Altima, Maxima, Murano, 350Z, Infiniti G35, G37, EX, FX, M series and QX4.