Dies/stalls when coming to a stop or turning, backfires at times
I have a 2001 5.9 Durango R/T with 183,xxx miles. It ran fine up until last weekend. Suddenly it started to do a sort of Hiccup or stutter if you will. NO engine light, & I took it to a auto parts store and they plugged into it and NO codes. It is progressively getting worse too. It will backfire at times at any rate of speed. Mostly it will die/stall when coming to a stop or going slow as to make a turn onto another street or pulling into a driveway. Still NO codes or engine light!
I have had 2 local repair shops take a look at it with NO answers. Left both repair shops with the mechanics scratching their heads. I finally took it to a certified Dodge dealership & paid the $115 for a diagnostic. Would you believe I got the same answer, don't know what's causing it to do that! The dealership recommended a good old fashion tune-up. New spark plugs, wires, cap & rotor, PCV valve with hose, and a fuel injection cleaner with a throttle body cleansing. I also cleaned the coil with some steel wool when I got it back home along with recharging the cold air intake that was already installed when I bought the Durango from a private party. I am the 2nd owner and this RT is in very good condition still, visually.
Unfortunately for now, the issue is still presenting itself. It died as I was pulling out of the dealership! I am open for any suggestions as to remedy this. I live in Denver, CO so I am not at sea level in case that makes any difference in this situation.