Check the air filter on the side at the top and also check the fuel filter is not clogged.
one reason for this is the air inlet on the petrol cap is blocked or too small causing a vacuum in the petrol tank and starving the motor.
Once it cools off it will start.
could be that the coil is getting hot and wont restart until it cools down.
cam position sensor has failed
did you have your ignition coil replaced? the signs are that the ignition coil is overheating thus you are able to restart after an hour, when the coil cools. also check if your ignition coil has a resistor. if it has, have it checked for continuity. did you have your ignition coil replaced? the signs are that the ignition coil is overheating thus you are able to restart after an hour, when the coil cools. also check if your ignition coil has a resistor. if it has, have it checked for continuity.
it is 1991 chevolet caprice....ecm
try replacing the ignition coil. after it hots, it starts breaking down and will not fire again until it cools off
module replace it be okay helpdesktogo@yahoo.com 407-479-7587 gotelit.com
It may restart when it cools down or you have toasted your engine. Where is your common sence. Stop next time that happens.
maybe your fuel pump or a massive air flow sensor
It could be either your magnetic pickup in your distributor ( which is like a crank sensor on cars without a distributor) or your engine control module. I would try the pickup first.
sounds like you could possibly have a bad head gasket. the symptoms are surely all there.