I have a 93 explorer 4x4 with 4.0L engine. The vehicle will start up and idle just fine, but as soon as I move the gear shift lever the engine stops. When it stops, the engine shakes very roughly in the engine bay before it quits. The engine will restart immediately and idle fine once it is placed back in park or neutral.
Does anyone have any ideas about this problem and how can I fix it?
TIA