answersLogoWhite

0

How does a high pressure fuel pump work?

Updated: 10/20/2022
User Avatar

Wiki User

11y ago

Best Answer

It is a gear or chain driven compressor, piston or rotor(like new oil pumps). It is feed fuel by a normal fuel pump at around 43psi and compresses it up to 25,000psi.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How does a high pressure fuel pump work?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Will a intank fuel pump work with a carburetor?

Yes, if you have a fuel pressure regulator.


Do you have to reset the fuel pump on a 1997 Chevy blazer if it runs out of gas?

No but running it out of gas can clog your fuel filter. Replace then if that doesn't work check fuel pressure no fuel pressure It's fuel pump relay or pump Itself. .


Can a fuel pump work and still be bad?

yes especially if installed in an automobile it may pump but not build pressure.


Why won't an electric fuel pump work on an 1982 Camaro?

it will work but you have to use a pressure regulator in line so you can set the fuel pressure down to 6 psi. for the carburetor


Why does your car hum before you start it?

that is the fuel pump building the pressure needed for the injectors to work


If fuel pump relay is bad will fuel pump still work?

If the relay is bad, then the fuel pump will not work.


Where is the fuel pump located on a 1988 Saab 900 turbo?

The fuel pump(s) are located in the gas tank. There are two fuel pumps, a low-pressure pump to fill the bucket that the main pump sits in , and the main high-pressure pump. The low-pressure pump is more likely to fail, which gives the symptom of running out of gas when the gas tank is still half full. If the low-pressure pump is not able to fill the bucket (which is to make sure there is gas for the main pump even when hard cornering with a low fuel level), the main pump is starved for fuel and the engine will quit. The pumps are easily accessed by removing the trunk floor. There are two circular plates in the body above the fuel tank. The larger one - on the left side - hides the fuel pumps. Removing the fuel pumps requires some tools not found in most simple tool kits. If you have any concerns, let a professional mechanic do the work.


Is there anything else besides the relay and the fuse that would make the fuel pump not work on a 1990 Chevy Lumina?

IS it the pump itself? Did you check for a blocked fuel filter? are you getting any fuel pressure to the fuel rail?


How do you test the fuel pump on a Ford E 250 1994?

Fuel pressure test. First thing to do is replace the fuel filter. If that does not help, then test the fuel pump with a fuel pressure tester. If you can't hear it run for a few seconds when the key is turned on, either the pump is bad, or the fuse is blown, or the fuel pump relay is defective. Even if you hear it running, it may be so weak as not to work properly.


Why is there no fuel pressure on BMW 535i cranks but does not run?

Sounds like your fuel pump is not working correctly. Check the relay and then work back.


Will a 1985 Chevy 350 work in a 1992 Chevy 350 for a replacement engine?

No it will not. Now it will bolt right in there but the transmission will not work and the fuel pump in the fuel tank has to much fuel pressure for a carburetor


1997 Pontiac transport Why wont your fuel pump work New fuel pump relay and power to the pump but it still does not work?

Bad fuel pump?