What can be wrong with my 1990 Buick Park Avenue?

I have a 1990 Buick Park avenue 3.8 liter. It use to run when it gets hot it cuts off. Now it won't start. I just put in a crank shaft censor and a knock censor. It still does the same. I sprayed starting fluid into the intake manifold and it will start and it will keep running until I get done spraying the Either. Thanks if you can help me.What can be wrong with my 1990 Buick Park Avenue?That us ally means the fuel filter is plug ed or a defective fuel pump. A 1990 %26amp; hasn't had the fuel filter changed - [omg]What can be wrong with my 1990 Buick Park Avenue?You have a fuel issue present you need to check your fuel pump fuse and relay first of all. If the fuse is good then check the replay if the relay is clicking when you turn the ignition on with out cranking the engine then your relay is good. Make sure your fuel filter has been changed and your looking at a fuel pump.What can be wrong with my 1990 Buick Park Avenue?If the car will only run on ether, sounds like you are not getting any fuel. Check your fuel pump. Could also just be a fuel pump relay or a fuse.What can be wrong with my 1990 Buick Park Avenue?
do you have gas in it? or have you check the fuel filter. the bigger problem would be getting hot enough to quit thats not good and either is not good should be used as last option