Why you need a fuel pump?

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2020-02-27 09:20:10

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In the design of vehicle fuel system includes the fuel pump. He is responsible for the supply of fuel to the combustion chamber. Fuel pump

There are two types of this device:

  1. Fuel high pressure pump

  2. Fuel pump low pressure.

Selecting a fuel pump

In case of failure of “heart” fuel system this unit needs to be replaced. In the process of buying a new device of this type will need:

  • Take the fuel pump into hands.

  • To Verify its correct functioning. The device has “spin”.

  • File ‘the power”. The unit “pull” in accordance with the direction of its rotation.

How to check pressure in the fuel pump?

Pressure test the fuel pump you will need:

- remove the mechanism system cruise control;

- to connect to the hose coming from the fuel pump, pressure meter;

- turn ignition on, then should turn on and the fuel pump. Pressure increases;

- warm up the engine, record the readings of this instrument, comparing them with the technical rules. The similarity of the readings speaks about the serviceability of this device.

- disconnect the vacuum hose. If the pressure in the fuel system is not increased, then it is necessary to increase the negative pressure in the pressure regulator. For this it is enough to connect the vacuum pump. Otherwise, you need to replace the fuel pressure regulator;

- in case of discrepancy between the fuel pressure with the technical requirements will probably need to replace the regulator, fuel filter or fuel pump.

Fuel pump high pressureHow to replace fuel pump?

In case of failure of the fuel pump it needs to be removed. To do this:

  • Put the car on the handbrake.

  • From the battery disconnect the wires.

  • Depending on where you are located access cover to the tank, you must remove the rear seat or trunk floor paneling.

  • Disconnect the fuel hoses, wires, and power supply connector petrol pump.

  • Remove the bolts.

  • Remove the cover that closes the hole to service a fuel unit. You must make sure that the gas tank did not hit the trash.

  • Remove the nut fixing terminal of the power supply of the petrol pump.

  • Remove the fuel pump.

  • Replace the mesh strainer of the filter.

  • Replace the fuel filter.

  • Collect all the removed parts.

Fuel pump low pressureAlso note that the replacement fuel pump should be held with safety. Note that the fuel in the engine may be under pressure. After a new fuel pump and other elements of the system have been replaced, start the car engine by using the starter. Only after this scroll appears in the system the fuel and the engine can be started in the usual way.

Another important nuance in the process of operation of the fuel pump is the fuel in the system. Experts recommend to control the level of the liquid. Limit indicator may be a red mark. If the presence of fuel below this level, then the probability of failure of the fuel pump increases several times.


Article in other languages:

AR: https://tostpost.com/ar/cars/21276-why-you-need-a-fuel-pump.html

BE: https://tostpost.com/be/a-tamab-l/38817-navoshta-patreben-pal-ny-pompa.html

DE: https://tostpost.com/de/autos/38366-warum-brauche-ich-die-kraftstoffpumpe.html

ES: https://tostpost.com/es/coches/38146-por-qu-necesito-la-bomba-de-combustible.html

HI: https://tostpost.com/hi/cars/22866-why-you-need-a-fuel-pump.html

JA: https://tostpost.com/ja/cars/20849-why-you-need-a-fuel-pump.html

KK: https://tostpost.com/kk/avtomobil-der/39211-ne-sh-n-otyn-sor-ysy.html

PL: https://tostpost.com/pl/samochody/40836-do-czego-s-u-y-pompa-paliwa.html

PT: https://tostpost.com/pt/carros/40512-por-que-voc-precisa-de-bomba-de-combust-vel.html

TR: https://tostpost.com/tr/arabalar/35709-neden-yak-t-pompas.html

UK: https://tostpost.com/uk/avtomob-l/39629-nav-scho-potr-ben-palivniy-nasos.html

ZH: https://tostpost.com/zh/cars/40190-why-you-need-a-fuel-pump.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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