the car won't start
What happens when a 1989 buick reatta fuel filter goes bad?
If the fuel pump relay is defective the fuel pump will not run.
The engine will not run.
you mean whats a fuel tank pressure senor? Well is a senor wire thats located around the fuel tank it basically holds pressure in to the fuel system and when is goes bad usually the engine light will be on and maybe bad fuel mileage to.
you have to use a vacuum pump and aply pressure to it and if fuel goes into the regulator then its working.
It floods your intake with gas and kills your engine. Its what happened to me. Actually pretty dangerous. Seems they should have some normally closed operation safeguard.
mine started leaking gas
If you have a bad fpr the fpr will leak a little fuel from the nipple where the vacuum line goes. An easy way I've found to check the fpr is if the fuel pressure is real low pinch the return line and if it builds more pressure then the fuel pump is good and can pressure gas but the fpr isn't working properly
If the fuel pump relay goes bad your fuel pump will not get power and you will get no fuel. If your fuel pressure is showing too low your pump is either weak and needs to be replaced, your fuel lines are restricted somewhere ( or possibly leaking ) or your fuel filter needs to be replaced.
If there a light on the instrument panel that says fuel cutoff relay that's on, then behind the passenger kick panel is a relay with a red button, push it and if it clicks and the fuel cutoff relay light goes off and you have fuel pressure you should be alright. If the relay doesnt click and the fuel cutoff relay light stays on then you probably have a bad relay. If the light goes out and you don't have any or enough fuel pressure then you need a new fuel pump or fuel filter and or both. also if you don't have enough fuel pressure you could have a bad fuel pressure regulator which is on the back of the engine. If you get the light to go off and it runs good then you have solved the problem. If the light goes out and it starts but does not run very well you should check the fuel pressure. Hope this helps. If there a light on the instrument panel that says fuel cutoff relay that's on, then behind the passenger kick panel is a relay with a red button, push it and if it clicks and the fuel cutoff relay light goes off and you have fuel pressure you should be alright. If the relay doesnt click and the fuel cutoff relay light stays on then you probably have a bad relay. If the light goes out and you don't have any or enough fuel pressure then you need a new fuel pump or fuel filter and or both. also if you don't have enough fuel pressure you could have a bad fuel pressure regulator which is on the back of the engine. If you get the light to go off and it runs good then you have solved the problem. If the light goes out and it starts but does not run very well you should check the fuel pressure. Hope this helps.
Engine makes noise, performance drops, fuel mileage drops,
Some possible causes for the engine to sputter: Bad fuel pump not enough pressure Bad fuel injector Bad air filter Bad fuel filter Bad spark plugs or wires