What the hell is going on?
My 2004 dodge ram 2500 5.7 hemi just had this start happening. Had my truck parked and working on it for the last few weeks, most of the that had the front end elevated. I have an exhaust manifold leak if that gives any context. Sometimes when I let it sit and idle the rpm’s get to like almost 400 and it just idles super rough and doesn’t feel like it’s running right. What could be going on? I’m low on transmission fluid because I changed the cooling lines. When I shut it off and key it back on this problem goes away. Sometimes it will do this and sometimes it won’t.