2005 5.3 vortec smokes on start up

gm made an engineering change to the roker cover gasket. This seems to be the fix so far - 2 weeks no smoke. otherwise always smoked. had valve seals changed 1st -did not work. new baffle on rocker cover -driver side seems to make a much bigger impact then I thought.

gm made an engineering change to the roker cover gasket. This seems to be the fix so far - 2 weeks no smoke. otherwise always smoked. had valve seals changed 1st -did not work. new baffle on rocker cover -driver side seems to make a much bigger impact then I thought.

driverside is the internal never fail PCV . to fix the cover must be removed . common problem.

on the 2000 5.3L this is not the case. external PCV.