After replacing valley pan gasket, oil check valves, valve cover gaskets, intake manifold gaskets, doing a carbon clean up, intake manifold clean out, fixing seized intake manifold flapper, new fuel injectors and new spark plugs my Audi S4 B6 started blowing crazy thick white smoke out of the exhaust upon start up. After running the motor for 15 minutes, hoping to burn it off, it never stopped coming. The thick white smoke just continues regardless. So my thoughts are there must be coolant entering somewhere it shouldn’t be. Any thoughts on what it could be? Blown head gasket is not of concern considering the head gasket wasn’t blown prior to performing the work. White smoke from the exhaust didn’t occur prior to the work done. Any thoughts or direction is appreciated