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Cycle the ignition on and off several times holding it in the on position for a few seconds each time. Doing this 4-5 times will allow the fuel pump to pressurize the fuel system.

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Q: How do you pressurize fuel system?
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How do you replace the fuel pressure regulator on a Chevrolet astro van?

What kind of Fuel Injection system do you have? Do you have a fuel rail? If you have a fuel rail - it is at the tip of the fuel rail (front of the engine). There are two tiny bolts that secure the fuel reg to the base of the front fuel rail (bolts with tiny nuts on the inside - so be careful about losing them around the heat shield that is on top of the intake manifold). Once you have freed the fuel reg. from the base of the fuel rail, it will come off of the fuel rail. Remember, to de-pressurize the fuel system (there is a cap nut on the side of the rail, take the cap off and de-pressurize). Sometimes, you do not have to de-pressurize (on the rail side of the fuel reg. sometimes that o-ring fails, and that willautomatically depressurize the system). You have to depressurize, or prepare to take a quick mini shower in gasoline. Ok, the other side of the fuel reg. - not the fuel rail side, but the other side. You should see a VACUUM WIRE BLOCK JUNCTION. Fuel reg has a vac hose that plugs into a manifold fitting - disconnect it and lay it aside. Pull that VACUUM WIRE BLOCK JUNCTION directly upwards and it will come off (don't break it!). Under that juction block is a bolt - loosen it. The retaining clip for the junction block - remove it, and the wire harness retaining ring (flat pice of rounded thin gage stock meant to hold the wire harness on the front side of the engine manifold. Most importantly, remove the same style retaining clamp for the fuel line. Now, you can work on the Fuel reg. - it is freed up, and should wiggle around freely although it is still attached to the hose. I goota get back to work - this should be easy from here on out - reverse the procedure for installation and send $20.00 to Wulfmun! Just kiddin - good luck! Wulfmun.


What would cause no control power to fuel pump relay on 1994 Ford Ranger?

In the absence of a fuel system shut off as in an alarm system I would suspect a fuel pump fuse, or faulty ignition switch


Do you need a vacuum canister?

Usually, it is not essential in the function of the engine. It serves more of an environmental protection purpose and has as slight use in improving fuel mileage. Without the canister, the fuel system can vent some fuel vapors directly to atmosphere (not very enviro-friendly and wasting fuel) instead of storing them for reintroduction into the fuel system.


What are gasoline treatments?

They are additives that you put in your gas tank when it is full to clean your fuel system or improve the octane rating of the fuel.


2004 dodge Cummings dies while driving and wont start?

Anytime a diesel engine will not run the fuel delivery system is in question. Fuel pumps, fuel filters, clogged injectors, etc. I have owned severall diesel trucks and a problem lilke this always boils down to something in the fuel system, in my experience. Good luck.

Related questions

Does the Jeep Compass 2012 have a pressurize fuel system?

yes


Why does your fuel pump engage when you hook up the battery but the key is not turned over?

It is to pressurize the fuel system and allows the vehicles fuel system to keep adequate pressure after the vehicle has been started.


Must you de-pressurize system before replacing fuel filter on 1998 Lincoln?

NO....JUST SHUT THE ENGINE OFF!!!!!!!!!!!!!


What is the worst that can happen if you run out of diesel?

Burn up the electric fuel pump, have to pressurize the system again, & be stuck on side of road.


1998 astro van Should an electric fuel pump operate constantly with ignition on?

No-it should only run for about 2 seconds, in order to pressurize the fuel delivery system. If it is constantly running, it may indicate a leak somewhere in the fuel system, or a bad fuel pump.


How do you repressurize 98 eldorado fuel system?

After de-pressurizing a fuel system, turning the ignition key from OFF to ON and then waiting about 5 seconds will pressurize the fuel system enough to start the car. You can always repeat the procedure. When you turn the key to ON, you should hear a whine from the fuel pump pressurizing. Hope this helps!


How do you depressurize and pressurize the fuel system on a 1990 Volvo 740 GL?

AnswerWith the engine running, pull fuse #1, the fuel pump fuse. Let the engine run out of gas.


Is 5 gallons enough fuel after draining tank on a 93 safari van?

5 gallons of gas should be enough to allow the fuel pump to pressurize the entire fuel system and take you at least 50 miles


Chevy S-10 won't start unless you turn key on and let fuel pump pressurize you never used too what is wrong?

The fuel system always had to pressurize. If you are having issues, your fuel filter in the rail next to the tank must be replaced. The normal cycle for replacing the filter is 15,000 miles. The filters are inexpensive, well under $20.00.


How can you check your fuel pump?

The easiest way is to just turn the key to the run position and listen for a quick humming sound from the rear of the car. That sound it the pump running to pressurize the fuel system. If you cannot hear it (have someone listen in the trunk) you have either a bad fuel pump or an electrical problem pertaining to the fuel system.


What would cause the fuel pump to not pressurize?

there could be some leakage in the pump


Replace fuel pressure reg 1992 ford thunderbird 3.8?

Release the pressure from the fuel system. Clean all nines and collectors. Remove the bolts that secureÊthe regulator to the engine and remove it. Use a new O-ring with the regulator. Install the new regulator. Re-pressurize the fuel system.