I have a 1994 Volvo 960. I can go out and start it right up, but after I drive it, it won't start again until an hour or two later. It is like the engine has to be completely cool for it to start. What could this be?
Problems starting after driving on 1994 Volvo 960
RPM sensor, fuel pump relay, coolant temperature sensor, fuel pump. Any of those can do it, check the diagnostic trouble codes and post them for more info.