I've done the plugs, wires, rotor button, injector cleaners. Still runs rough. no codes are triggered either. don't have a pressure tester. it is a steady rough making me think it may be a bad cylinder or bad timing. your thoughts? I'm baffled.

 

you replaced the cap and rotor with one that has brass contacts?

after that check the crank or camshaft position center as they control timing

 

X2 what he^ said.

 

try cleaning the throttle body and replacing the pcv valve mine was idling rough and that fixed it

 

Check for a vacuum leak. Use a handheld propane torch, no flame, listening for changes in idle as you pass the open propane past a vacuum in take of fumes.

IndyDurango

 

Did you use OEM parts or aftermarket?????