I have a 92' Dakota 318 Auto which has just had the distributor shaft replaced as Chrysler dealer suggested was the problem but clearly wasnt. The problem is the engine idles smooth and runs excellent but seems to hit a stumble/miss spot when smoothly accelerating lightly on the throttle anddoes this very noticeable when maintaining a constant speed especially goin 110km/hr on the highway (almost feels like your hittin little bumps in the road) when this stumble occurs the rpm's do not fluctuate on the tach at all.Truck ran great for about a week after gettin the shaft replaced but is back to the same.The other day truck started great warmed up for about 5 mins started driving, let off the gas to decel and make a turn and the truck died. Started it back and and it died right away, but would run if i kept my foot on the gas. Sostart driving again and now the truck appears to idle and is not dying when coming to a stop or lettin right off the gas. Checked for codes but no codes. Lastnight cleanedthe IAS and tested the TPS after checkin these things the truck was flashing a code 12(memory standby power loss) but the battery was not disconnected while doing this?????Is this normal after unplugging sensors??.I dont know if this stumble/miss and the truckstalling and not wanting to idle r linked or just coinciding with each other.If anyone knows why this truck could be stumbling pleaseHELP I am gettin sick of this prob every time I think I have it it seems to go away and then reappear(this truck has been intermittently stumbling for the last yr).Parts replaced soo farinc:O2 sensor,ECM (1yr old), cap rotor, plugs, wires, HEP coil, ignition coil, fuel pump/filter

 

mine did that for a while, i think it was some bad gas(diamond shamrock) try filling up with super unleaded and pour a bottle of b-12 chemtool in the tank. i also use this for oil changes too. pour a bottle in and run theengine for 5 min then drain the oil. also check your egr valve and clean it

 

Did you find the problem my truck does the same thing:?

 

Pull your fuel pump out of the tank. There are two rails on each side of the fuel pump with phillips head screws attaching it. This is supposed to slide up and down freely but if they are worn it will cause it to stick. Just something to look at.

 

I have a 95 dakota V8, it stumbles only when the fuel level is below 1/2 tank and is noticably worse at a 1/4 tankin fact the entire truck shakes, even when it is below a 1/2 tank it will idle ok but not perfect any suggestions?

 

My '95 had this problem, distributor cap and rotor were bad, build up on contacts