Question about 1994 Ford Explorer Limited

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I TOOK THE GAS TANK OUT TO FIX A BROKEN GAS LINE. NOW It pumps gas to the fuel pressure regulater but nothing past that nothing in the fuel rail it ran before I took the tank out.

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Some how you have the pressure and return fuel lines backwards. Double check your repair,I am thinking you cut atleast 2 lines for the repair. Just reverse them.

Posted on Jul 27, 2009

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Posted on Jan 02, 2017

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87 z28 How to prime and purge the fuel rail


No prime is required. Pump is located in tank.

92z28fuelpump2-s5y3ewsipro5t2ihgvdymka0-3-0.jpg

Jun 26, 2017 | Cars & Trucks

1 Answer

Why still no fuel pressure


Are you checking fuel pressure at the engine fuel rail with a pressure gauge hooked up, and key on? And you still hear the pump turn on for 2 seconds with key in on position?
There should be pressure in the fuel rail then. If not, is it possible you put the new filter in backwards? I would take off the line going into the filter from the gas tank, and leave off for a test: you're right, the pump turns on for 2 seconds with key on to put pressure in the line and the fuel rail. But then when the engine is cranking, the pump is turned back on. To check if the pump is picking up fuel, have someone crank the engine over while you watch at the filter: gas should shoot out in a good stream. If it doesn't, check for a kinked line from filter to the tank. If the line is good, you will have to take the tank back off and see why the pump is not picking up fuel and sending it out.
Let me know what you find. If the pump shoots out gas at the filter area, but still no fuel pressure at the engine, check the line from the filter to the engine-may be kinked, blocked, or clogged.

Jun 08, 2014 | 2001 Ford Windstar

1 Answer

Was having trouble with my 1998 GMC 1500 5.7 with it dieing would restart and run for a few but got worse dieing and not starting so i took it in for a diagnostic test they said it had low fuel pressu


The fuel pump in the gas tank and the fuel pressure regulator are what controls fuel pressure-the pump builds pressure in the lines and the fuel rail on the engine, and when pressure is correct the pressure regulator keeps it constant by controlling the fuel return line from the fuel rail to the tank.
If your fuel filter is clean and not plugged, it sounds like the pump or the pressure regulator needs to be replaced. Even though the pump is working, it may be weak and failing. Some vehicles have the FPR inside the tank with the pump-You will have to check where yours is located. If it is located on the fuel rail, it can be checked to see if it is working right.
Good luck.

Feb 08, 2013 | 1998 GMC Sierra

1 Answer

Where does the fuel line at the end of the injector rail run to on a 1991 rodeo


All fuel injected systems have a feed line to the engine's fuel rail to keep constant pressure at the injectors fuel entry point. A tiny bit goes into the engine cylinders when the computer allows the injector to open by a signal pulse.
And the rest of the fuel in the rail is pushed by the pump back to the gas tank by a Fuel Return Line (what you are seeing and the other line in all fuel injected systems.
Think about it. The pump is running constantly (with the engine), so to avoid pressure build-up, or having to continually turn the pump on and off, voila, put in a return line after a pressure regulator gets the pressure right in the rail, and let the excess go back to the tank. Pretty good idea: no stale gas left there on top of engine. I hope this helps you understand it better.

Nov 28, 2011 | Cars & Trucks

1 Answer

Free_Schematic_Diagram2000 toy tacoma fuel line


Don't have a diagram, but maybe I can help. Do you see the injectors? They are held on by o-rings to the "fuel rail". On a v-6, there would be two fuel rails connected together with piping. The line from your tank goes right into this fuel rail, and with the pump, keeps a steady pressure up to feed the injectors. On one end of the fuel rail is a small circular object with a vacuum line. That is your pressure regulator. It keeps the pressure constant, and the excess fuel goes out the regulator and into your fuel return line, back into the gas tank. The fuel rail would be on top of the intake manifold, bolted down. Hope this helps.

Oct 21, 2011 | Cars & Trucks

1 Answer

1997 Dodge Intrepid has set up for several months while in hospital. Will not fire. Put small gas amount in air intake and it fires and runs for 10-15 seconds. Gas probably not getting to injectors. Pump...


Several months could be a tank of bad gas. When turning the ignition to on position the pump runs for 3 to 5 seconds to pressurize the system, next find the valve on fuel rail and press it, Shield with a rag while doing this. You should get fuel. Check the way it smells, bad gas has an awful smell that can make you hurl! Attach a fuel pressure tester, it should be around 50lbs. If it's bad empty the tank by pressing the needle and relieving the pressure. Next disconnect fuel line before the filter get a container to catch the gas. IN the engine conpartment disconnect the fuel pump relay and put a jumper wire to run the pump until tank is drained. Instal new filter and pump if needed and add a can of "Seafoam" to the tank with fresh gas. Run pump until there's fuel at the fuel rail then put relay back in. now we should have ignition and constant running. Hope this helped.

Oct 07, 2010 | 1997 Dodge Intrepid

2 Answers

Fuel pump location 1988 ford econoline


Theres 2 pumps one in the tank, lift pump, and one in the chassis rail under the driver side. The one in the tank is cheap, the one in the rail is not. The one in the tank only produces low pressure to prime the main pump and if it is broken, may not cause that much of an issue except when starting. the one in the rail is a no-start if it fails. The idea is that the rail pump can supply high pressure for the injectors, so a fuel pressure test at the injector rail will determine which pump is playing up. Hope that helps Tim

May 26, 2010 | 1988 Ford Econoline

1 Answer

Cant hold pressure in fuel rail 1993 jeep gand charokee seems to want to start but shuts right down fuel is coming out of line at good rate i replaced fuel pump and fuel pressure regulator no change yet...


i'm assuming you disconnected the fuel line and placed the line in a container to catch the fuel when observing the flow.

it might sound strange but i think there might be a leak in the tank coming from the fuel pump assembly. it's possible a tube or hose is broken on the assembly and the pump is just pumping the gas back into the tank.

there's flow because there is no pressure building up with the line disconnectedand the gas flows. when connected, pressure builds and blows out the break in the tube or hose.

May 02, 2010 | 1993 Jeep Grand Cherokee

2 Answers

Won't keep running


Hi

It sounds to me as though you have a case of excessive fuel pressure, which could be due to a faulty fuel pressure regulator or a blocked fuel return line.

I don't know whether or not there is a Schraeder valve on the fuel rail of your car (it looks like a tyre valve) but if there is then it may be worth connecting a fuel pressure gauge to it and observing the fuel pressure build up.

You could also disconnect the fuel return line from the fuel rail, push another length of rubber pipe onto the rail, hold the end in a suitable glass container, and then have someone start the engine whilst you gauge the fuel flow from the pipe. It should be a good steady flow, and, if the engine doesn't cut out with the return line disconnected then you know there is a blockage in the return line and you can make arrangements to blow it through.

Very best regards

Geordie

Jun 07, 2008 | 1987 Toyota Celica

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