So far 80 units have been identified as having problems. That could be substantial, but is that the
serial numbers of boats produced? or engines? what is the total population?
Volvo is methodical and meticulous in diagnosing a problem. They will find it.
My armchair diagnosis. The
fuel system is creating too much vacuum up stream from the
engine. This causes air to be sucked in through various fittings and connection points.