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What should the fuel pressure be on a 2003 ford v-10 6.8

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Key on engine off 35-45psi key on engine running 28-45 psi

Posted on Dec 05, 2016


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If you disconnect fuel line on 2003 ford explorer, should the fuel pupmp shut off if the key remains on

Yes, it will only cycle on for 10 seconds before the relay shuts off. That is called priming so pressure in the fuel system will be at the proper pressure for operation. The fuel pump will engage when cranking engine over but it will create a very huge mess.

Feb 09, 2016 | Ford Cars & Trucks

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What fuel pressure does it take to make this Ford, fuel ingected engine work the injectors correctly

The Importance Of Fuel Pressure For 1999 - 2003 Ford 7.3l ... > Articles > Fuel System
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Jan 13, 2016 | Cars & Trucks

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2003 ford explorer will turn over but not start

The first thing I would do is check fuel pressure. You should be able to find a test port on the fuel rail that runs on either side of the intake. Use a fuel pressure gauge to see what fuel pressure is when you crank the engine over. You could try shooting a couple shots of carb spray into the throttle body and start the engine. If it starts you likely have a fuel issue and a pressure test would be the next step.

Apr 09, 2013 | 2003 Ford Explorer

2 Answers

Where do you find the fuel preasure regulator on a 2003 taurus

Up until 2002 the fuel pressure regulator was vac controlled and mounted in the fuel rail on the intake manifold.
After 2002 I think it is part of the fuel pressure sensor which still mounts on the rail.
You may have to check with the dealer to see which version your engine has.

Jan 28, 2013 | 2003 Ford Taurus

1 Answer

2003 Ford Expedition is hard to start. I takes two to four turns of the key to get the engine to fire.

Could be fuel pressure loss.
The fuel pump is supposed to hold pressure when the engine stops.
If it falls to zero, you would have to cycle the fuel pump relay a few times to get it back up to start.
I would check the fuel pressure first.

Jul 20, 2012 | 2003 Ford Expedition

1 Answer

How do you get to the fuel vapor pressure sensor on 2003 chevy s 10

Hello: The fuel tank vapor pressure sensor is located in the top of the fuel pump module. You will have to lower the fuel tank to provide access to the sensor.

Jul 28, 2011 | 2003 Chevrolet S-10

2 Answers

I have a 2003 ford windstar and it sputters when idling and going up hills and when i step on it it back fires whats causing it

plugged fuel filter or maybe a bad fuel pump. Check pressure with a gauge, should be 40 psi.

also, a dirty MAF sensor can cause this. clean by psraying with carb cleaner a few times. disconnect battery to clear memory and leave off for 2 hours and then drive for 10 miles to re-learn.

Dec 08, 2009 | 2003 Ford Windstar

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2003 Expedition hard to start

HI ' sounds like a liking fuel pump check valve ,to test install a fuel pressure tester follow instruction on tester ,turn key on don't crank engine over turn key off and back on again note your fuel pressure should be 38 psi to 48 it should keep 20 psi in system after 10 minutes of just siting replace fuel pump if you loose the pressure

Sep 23, 2009 | 2003 Ford Expedition

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