What to do if your fuel pump runs but no fuel pressure?
What to do if your fuel pump runs but no fuel pressure?
Its no big deal, just pull the pin out the back side of the harness, straighten out the barbs on the pin and flair them out a little and push the wire back through gently till it seats again… That is if you have in fact damaged some wiring at the harnesses.
Why is there no pressure on the fuel rail?
If the pressure at the exit side of the fuel filter is normal and yet the pressure on the fuel rail is essentially zero, it’s possible the fuel pressure regulator has failed wide open, essentially preventing sufficient pressure from building.
Can a fuel pump run if the ECU is not on?
Click to expand… It would be a good idea to check the wiring since you yanked on it. But if the pump is running thats all that matters at this point. The ECU doesn’t control fuel pressure so it’s not like you tripped some kind of electronic relief valve.
Can a fuel pump be replaced with a motor?
Most of these in the tank pumps are one unit, pump and motor. It makes sense to replace them both…But yes, give it the coffee can test. Outdoors…Be careful about sparks from temporary wiring… tardrex July 6, 2016, 4:51am #5
What does no fuel pressure on fuel rail mean?
No fuel pressure on fuel rail after pump and filter change on my 96 grand prix GTP 3.4L I have only $11.90 in my acct. – Answered by a verified Pontiac Mechanic We use cookies to give you the best possible experience on our website.
What to do if your fuel pump is no longer building pressure?
OP check the rubber o-ring that slides onto the nose of the pump. You can blow (lightly, and don’t inhale) on the end of the fuel line to verify that it’s sealed properly. I had a similar problem with a walbro 255 where it would no longer build pressure.
What’s the fuel pressure on a 96 Grand Prix?
No fuel pressure on fuel rail after pump and filter change on my 96 grand prix GTP 3.4L I have only $11.90 in my acct. No fuel pressure on fuel rail after pump and filter change on my 96 grand prix GTP 3.4L I have only $11.90 in my acct. – Answered by a verified Pontiac Mechanic
Click to expand… It would be a good idea to check the wiring since you yanked on it. But if the pump is running thats all that matters at this point. The ECU doesn’t control fuel pressure so it’s not like you tripped some kind of electronic relief valve.
