 Posted 3/17/2009 7:37:48 AM
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Has anyone had a problem with lifters,push rods, or cams on the 3.9L engine? Have found some with ticking noise 3-4000 RPM range. GM has then replaced Lifters. One car has had to have cam replaced 3 flat lobes along with one bent push rod and lifters. 
Ron Zoubek
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