L96 Cold Start Up Valve Train Noise ???
12-09-2013, 02:18 PM
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L96 Cold Start Up Valve Train Noise ??? I have a 2013 GMC 2500HD 4X4 with the L96 6.0 Liter that has a nasty cold start up valve train noise. The truck has done it since new with Dexos 5W30 and Mobil One 5W30. Has anyone experienced this issue?
