Two things could have failed. The Temp Sensor and the Fan Switch. Both re located on the block. Try the switch first. They are usually the first to go.
Well my 1985 Sport Camaro idled very funny, it had to be revved up to keep it running and sometimes it would idle perfectly, and the motor's idle would fluctuate going up and down. It turned out to be caused by a MAP sensor, it's located under your distributor cap.
It could keep the engine from running, but not the valves from moving.
Firing as in starting and running, no.
Where is the radiator fan relay at on a 2000 Plymouth voyager
The blower motor will operate when the key is in run regardless of whether the motor is running. The AC itself is not operating as the compressor is turned by the motor.
yes
The tiger would not be able to keep running
Failed limit switch, or bad wiring. The motor will keep running until the headlight finds "home" ... ergo a failed limit switch as mentioned above. The sensor at the "home" position (headlight off) has to be tripped by the headlight assembly before the motor will shut down. The motor has no idea where the headlight physically is ... it keeps running until the switch is engaged.
Make sure your fuel pump is working, on the back of the motor,there is a valve on the back of the fuel line to do this. Keep in mind the #1 problem with these cars is fuel pump failure. If you have fuel pump pressure, I would suspect the control module within the distributor.
Because when your car runs out of gas there is no more gas in the fuel lines to run the motor so when you refuel it then start it there is nothing there to keep it running. The gas have to be pumped out of the tank and into the motor.
Timing not set properly, carbon deposits in the combustion chamber, cracked head, blown head gasket, overheating.
you would need a fuel pressure regulator to control the flow to the carb to keep the pressure about 5 or 6 PSI, you shouldn'rt have to do anything with the pump in the tank.