relieving fuel presure

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Apr 13, 2007 | 07:40 PM

OldRed4X4

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relieving fuel presure

Can any provide pictures of where the fuel prusure regulater is and tell me if i have to have a tool to realse it becouse it says i have to in the manual but i dont have the tool but i need to get my upper intake off and get it cleaned cus im having idleing trouble
Thanks for any help

Apr 13, 2007 | 08:42 PM

88 f150

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Joined: Dec 2006

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What year, motor size etc. Most pressure regulators will be on the fuel rail nearest the fire wall. There should be a fitting on the fuel rail similar to a tire valve. Screw your fuel pressure gauge to it and relieve pressure. But before you go tearing things apart take the time to be sure everything is in order and pull codes to give you some direction.

Apr 13, 2007 | 08:48 PM

OldRed4X4

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sorry a 1987 ford f150 5.0 with a E4OD but i have tried every thing else
(o and i dont have a presure regulater)

Apr 13, 2007 | 09:14 PM

Dryfire152

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Joined: Sep 2006

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From: Washington County, ME

You can relieve pressure by disabling the pump and than run the engine until it stalls.

Apr 14, 2007 | 06:14 AM

subford

Fleet Owner

Joined: Aug 2005

Posts: 23,667

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From: Easton,Ks

Quote:

Originally Posted by OldRed4X4

sorry a 1987 ford f150 5.0 with a E4OD but i have tried every thing else
(o and i dont have a presure regulater)

If you have a 5.0 FI then you have a pressure regulator.
Unplug the Inertia Fuel Shutoff Switch and as Dryfire152 said and than run the engine until it stalls.
Fuel Manifold:
http://i54.photobucket.com/albums/g91/subford/Fuel/Fuelmanifold.jpg
Location:
http://i54.photobucket.com/albums/g91/subford/Fuel/FPR.jpg
And the FPR:
http://i54.photobucket.com/albums/g91/subford/Fuel/fpr02.gif
Inertia Fuel Shutoff Switch:
http://i54.photobucket.com/albums/g9...SwLocation.gif

Last edited by subford; Apr 14, 2007 at 06:19 AM.

Apr 14, 2007 | 10:36 AM

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

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From: Ottawa, Ontario

Quote:

Originally Posted by OldRed4X4

Can any provide pictures of where the fuel prusure regulater is and tell me if i have to have a tool to realse it becouse it says i have to in the manual but i dont have the tool

You don't need a tool(except maybe a small spade screwdriver) to release the fuel pressure. There's a valve on the drivers side fuel rail(V8s) near the front like a tire valve. Take the cap off and relieve any pressure with a screwdriver by pressing the pintle.

Quote:

Originally Posted by OldRed4X4

..but i need to get my upper intake off and get it cleaned cus im having idleing trouble

Cleaning the upper intake won't help with idling trouble. If you discover you have a gasket leak or broken vacuum line from this exercise then it may not be a complete waste of time. There's also no need to touch the fuel system to remove the upper intake either.

Apr 14, 2007 | 12:45 PM

lostin90s

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Joined: Jul 2006

Posts: 3,978

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From: Central PA

If you need the star (torx ) driver to get intake off go to hardware and get a cheap set of tork drivers for a cordless drill/ screw gun you can get then for $12.00 or less and will have all odd bit you will need . I just tape (its a T40 torx) bit into the 1/4 in socket extension and ratchet.(It shouldn't be that tight. )to loosen remove middle bolt. The sets of torx with square for the ratchet/extension built in won't fit between intake groove. Good luck

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