Mine was similiar on a 602 4cyl diesel ,it wouldnt run after I had parked during a drive ,during the drive it had very low power made sounds very close to what your cars engine sounds like, towed it home .The Short story is it had a broken cam ,was sheared in two parts ,the chain would allow cyl 1-3 to turn with compression but a the 4th cylinder their was no movement for the valves to open and close due to the cam failure,take your valve cover off and Im beating youll see the same issue.If you can replace just the cam ,yahoo, the original cam has done its job for those many ,many yrs of service.