C15 Acert Problems - Lord Of The Flies Chapter 7 Quizletpodcast Personal On a c15 accert nxs is the pre cooler diverter valve a normally open or normally closed solenoid/valve and could it stick open? Although it's one of the most popular engines in cat's offerings, the c15 remains controversial due to multiple issues. The biggest problem with the c15 design is the head gasket. I've heard so many bad things about the c15 acert problems here in the forum, so my question is should i avoid this motor at all costs? Should i get it and convert it to a. Originally when the twin turbo c15 came out it did pretty well but had a few minor oil leak and rocker arm problems. But these problems have been taken care of and are no longer an issue.
Lord Of The Flies Chapter 7 Quizletpodcast Personal