06Rubi

On my 86 mustang was driving along and the low furl light came on and yes it has plenty of fuel i just filled it. Idle has gone down a little but still runs ok but does have a little stumble. I just replaced the fuel filter since i had not done that or know when it was done last. Don't know if a fuel pump goin out might trigger that light or not?

94ford5liter

it is possible or the car isn't getting enough fuel. You think you might have any leaks by chance? Also possible the light is just messed up, a lot of the electronics on 5 liters tend to get kind of twacked out lol.

06Rubi

No it doesn't leak at least not gas anyway,minor oil thingy but hey diff topic for later. I bought a new fuel pump just too bad i happened to just have the car filled up and now i have to drop the tank.

06Rubi

How hard is it to do a pressure test on that car and wouldnt that tell me whether or not the pump was acting up?

94ford5liter

you could probably just check the fuel pressure on the fuel rail with a fuel pressure gauge, and see if the pressure jumps up and down, that would most likely mean the pump is going out.

93 LX FiveO

honestly.. i would just pull the bulb. they stopped putting those lights in these cars for a reason... if ur lookin at the gas gauge u aint havin fun

HACKGT350

im thinking its the sending unit/pump easy to replace just put it in and see what happens

HACKGT350

haha mine is an 84 and my gas light works no problem with 175k on the clock all my stuff works great except for the engine temp i had to get an aftermarket for that

06Rubi

What should the fuel pressure be at when i get a pressure guage on it? Iwould love to just pulll the light but i also dont want to get out somewhere and the pump go out. I really hate being stuck somewhere thats why im kinda hopin there is a easier way to do it

Joel5.0

Low Fuel light indicator is not connected to the fuel pump, it could be a problem with the "Low Fuel Warning Module", wiring, instrument panel or fuel level sender......