Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum - View Single Post - is the ticking noise under the hood the lifters
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Old 11-23-2010, 05:06 PM
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ylab ylab is offline
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2002 GMC Envoy SLT
Summit White 4.2L I6 4X4
Join Date: Jul 2005
Location: Stratford, NJ
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The old joke was that the small block chevy engines have tapped since 1928.......they all have some valvetrain noise. Most engines have a faint valve tick noise to them, if you listen careful enough to hear it. My Envoy, my wife's Maxima and even the venerable Honda motor has a slight tick/tap in the valvetrain.
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