1994 Ram 1500 4x2 3.9L Idles fine in park but put it inany gear includeing neutral it runs real rough... It has new plugs, wires, cap & rotor, airfilter, fuel pump... Can`t seem to figure it out. Any help Please!!!

Thanks

snapaj

 

probably a damaged oxygen sensor. I had the same experience before but not on my truck. it happened to my Fiat Oxygen Sensor. I think the component of my car and your are somehow the same so try to check that part.

 

does the engine make any ticks or clicks. or does it just idle rough?