I have a 2006 chrysler 300c 5.7 Hemi and I have been having problems with the car stalling, it would first stall when i was coming to stop going really slow, then one day it didn’t turn back on, mechanic replaced the TIPM and received the car back with a misfire, scanned the car and got a P0300 random cylinder misfire, replaced the spark plugs, valve cover gaskets, intake manifold gaskets and it still stalls out. When I turn the vehicle on it starts good then when the RPM’s set down the car sounds like it’s cammed and starts to misfire, it revs up to stay on but after it chokes out.
The 5.7 Hemi is famous for malfunctioning roller valve lifters that wear out prematurely and grind down the cams. Remove the valve covers and while someone is turning the engine over, watch the movement of the rocker arms. They should all move the same. If they don't, the heads have to come off and the cams and roller lifters have to be replaced. Sorry.
