So I have 2008 nitro with the 4.0. It has 180,000 has been maintained as normal and never an issue one until now it has started stalling at idle a few months ago. More so with the AC on but does time to time without it. Its not showing any codes what so ever.. We stopped driving it when all this started but have worked on it regular and im completely stumped. Ive changed the TIPM box along with each relay and fuse in it. Had it flashed aswell, new EGR valve, pcv valve, plugs, coil packs, throttle body, alternator, battery, air filter, fuel pressure test good, even ran seafoam through it. Only rhyme or rhythm i can see is the AC on but has to run for a good 45mins before first stall then after that is more frequent then i can turn air off then it will run an hr or 2 before stalling or not at all. when it stalls it doesnt cut power everything stays on just the engine quits. Any thoughts would be much appreciated . please help. Thank you in advance..