hello people. i have a 93 dodge dakota sport with the 3.9 magnum. the engine seems to stall out occasionally during different times. one time being when its cold it seems to stumble or die when i shift from park to drive or reverse. at other times after operating temp is reached it will stall at a stop or at a low speed deceleration. and to throw an oddball in there occasionally/usual on cold starts the truck does not like to shift into overdrive, resulting in me having to feather the throttle to make it shift into overdrive or having to go full throttle to try and make it shift which sometimes ultimately results in me having to pull over and shut the truck off for a while and/or driving in 3rd gear. anyhow im thinking that my stumble issues are related to my fuel filter which im reluctant to change due to the conditon of the fuel lines...and/or could be possibly related to a tired fuel pump...and/or could be related to a faulty IAC sensor? any ideas are much appreciated. thank you!