I have a 1993 plymouth grand voyager with the 3.3 engine, it will turn over and fire once, then nothing. do you think the timing jumped or the gear and chain grenaded on me? it ran fine last night and this morning it would not start.

Hi from uk let's not think negative waves? and just go back to basic process of eliminating ? what simple causes could be wrong ? if engine fired up then died? could be ignition fault or fuel supply? have you got spark when engine turns over ? if so check fuel ? is fuel pump working/delivering to engine ? from what you described engine did fire but died ? and now turns over but no attempt to start if fuel pump failed ? engine would normally start initially but die when fuel is used up in carb or efi system if you suspect cambelt/chain has failed you would have heard noise as pistons hit valves ?? then when you turn engine over ? it would spin faster with lack of compression does this make sense to your theory? i would think positive and do these diy checks as mentioned above first you may find fault yourself without spending $$$$$s for garage to charge for same checks?