 I put a new fuel pump. It's a 06 Ram with 3.7. And, of course, there's a cheap pump. And you suggested the inline check valve. That worked great. Well, little by little, I started having multiple misfires over the last several months. I chased it down to number two and number four. I've replaced the valve lash adjusters, whatever they call those. And while I had the valve covers off,