Question about 1996 Ford F250 Crew Cab

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Fuel pressue leaks down

Justed replaced all 8 injectors

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  • tmeck Feb 13, 2009

    turned out to be air in the oil presure system that feeds the fuel injectors just needed to run it on the road to force the air through thanks for the help though

  • yadayada
    yadayada May 11, 2010

    what is the question?

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FUELLINE OR PUMP

Posted on Feb 13, 2009

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03 3.7 have new o rings for bottom of injectors do you put it on the head first or on the injector just put head gaskets on jeep


old post but see it asked many times.
assemble the rail first, its 1 piece so must be ready first.
3.7L Engine (FSM) RTM?
(1) If fuel injectors are to be installed, refer to Fuel
Injector Removal/Installation.
(2) Clean out fuel injector machined bores in
intake manifold.
(3) Apply a small amount of engine oil to each fuel
injector o-ring. This will help in fuel rail installation.
(4) Position fuel rail/fuel injector assembly to
machined injector openings in cylinder head.
(5) Guide each injector into cylinder head. Be careful
not to tear injector o-rings.
(6) Push right side of fuel rail down until fuel
injectors have bottomed on cylinder head shoulder.
Push left fuel rail down until injectors have bottomed
on cylinder head shoulder.
(7) Install 4 fuel rail mounting bolts and tighten.
Refer to torque specifications.
(8) Install 6 ignition coils. Refer to Ignition Coil
Removal/Installation.
(9) Connect electrical connectors to throttle body.
(10) Connect electrical connectors at all fuel injectors.
To install connector, refer to (Fig. 37). Push connector
onto injector (1) and then push and lock red
colored slider (2). Verify connector is locked to injector
by lightly tugging on connector.
(11) Connect necessary vacuum lines to throttle
body.
(12) Connect fuel line latch clip and fuel line to
fuel rail. Refer to Quick-Connect Fittings.
(13) Install air box to throttle body.
(14) Install air duct to air box.
(15) Connect battery cable to battery.
(16) Start engine and check for leaks.

Oct 07, 2014 | Jeep Cars & Trucks

1 Answer

Number one injector came loose in 2001 toyota avensis d4d, removed injector pipes, wiring on injectors and rocker cover, tightened down injector, rebuilt and is now down on power.


REPLACE THE FUEL INJECTOR CANT REBUILT IT.IF YOU REMOVE FUEL INJECTORS FUEL RAIL YOU HAVE TO REPLACE GROMMETS AND O RINGS ON ALL THE FUEL INJECTORS IF NOT YOU WILL HAVE A INTAKE LEAK AT THE OLD FUEL INJECTORS SEALS.REPLACE THE FUEL INJECTOR YOU REBUILT THEY HAVE TO BE REPLACED.

Mar 02, 2011 | Toyota Camry Cars & Trucks

1 Answer

Changed fuel lines on 1992 f 250 7.3 liter idi was old slow leak . now all m,y injectors are leaking right above big nut on the injectors looks as if its coming up from bottom of injectors ... real crazy...


sounds like you're gettting alot of fuel pressure now for sure,you may have to pull those injectors and replace the 'o' rings around them,they may have been bad all along and not enough fuel pressure to make them leak.when you replaced those fuel lines did you pull on the injector rack at all? if you did, the solution is simple,push the fuel rack back down to reseat those injector 'o' rings. that should solve it. otherwise your stuck pulling that fuel rack anyway so i would try pushing that rack down either way. it may seal the injectors back up. hope this helps and thank you for choosing fixya.com oncallmech

Jan 10, 2011 | 1992 Ford F250

2 Answers

When you turn the key on excessive fuel flows into the air intake. its a 1989 6 cylinder 3.1 fuel injected


You could have either an injector that is stuck open or a fuel pressure regulator that has developed a leak. A leaky injector will usually only leak fuel into one cylinder as it is located just above the intake valve in the lower part of the intake while a leaky fuel pressure regulator will leak fuel into the front end of the intake manifold [behind the throttle plates] and the fuel will acuumulate throughout the upper intake plenum. When a fuel pressure regulator develops a leak the fuel that is escaping from it flows through the small 1/8" diameter plastic vacuum line which goes from the top of the regulator to the intake manifold. Even a trace of fuel in this line means the regulator is bad. I've seen both leak items leak but probably replace 10 regulators leak for every one injector. Good luck, hope you find your problem!

Jul 22, 2010 | 1989 Oldsmobile Cutlass Supreme

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Put a new fuel pump on a 98 s-10. It ran for a day and quit....is not getting fuel.


These engine had alot of trouble with the spider inside the plenum. It is basically a fuel injector with plastic lines that goto to each cylinder but inside plenum so you can not see. If you smell fuel in oil or have hard starts (cranks for awhile before starting) it could be this problem. Check fuel pressue with gauge, if its good let gauge stay on and make sure the pressure stays this is called REST pressure if it doesn't those lines could be leaking internally.

Jun 17, 2010 | 1998 Chevrolet S-10 Pickup

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My truck won't start its turning over. it's a fullsize 94 blazer k15


check for spark at plug 'if no spark you or someone must do a spark check if spark present check fuel pressure if no pressue carefully spray a small amount of starting fuild in intake ''' remember Small amount if starts then promlbe is in fuel system , pump, or even, computer

Mar 14, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

My 1994 Chrystler Concorde will not start in the morning. I feel like I do not hear the fuel pump come on and when I do it will then start. Should I replace the fuel pump or something else?


If the car sits for two days or more will it start with little issue? I only ask this as I noted the year of your car; with time the fuel injectors will leak. Over night the engine can then flood but once we turn it over for a time or two and then walk away we allow the fuel to evaporate out of the cylinders letting the car starts. If this is the case try starting the car with the gas pedal fully pressed. Keep it fully down as you try to start the car (this shuts off the fuel injectors) turn over the engine 5-8 seconds (keep the pedal down) and then wait 10-15 seconds before trying again. Remember to keep the gas pedal down, try this 6-8 times to see if she'll start (if it does let go of the gas pedal not to over rev the engine) If this is the case you'll need to have your injectors replaced.
I hope this may have helped,
Tom

Oct 19, 2009 | 1994 Chrysler Concorde

1 Answer

My 1999 volvo xc 70 engine light just came on and it sputters when I put on the gas and it smells like something is burning I've had both the studder and the gas smell problem, the studder was the O2...


Sound like a possible leak or you have a bad injector. You will not be able to lokk under the car for any leaks due the fuel will evaporate, you will need to start the car and look at the fuel rail while it's running. If it is not that check your fuel filters. If your lines do not have addaquate fuel pressue due to a leak or a dirty filter, it could cause those symptoms...


Good luck!

Jun 02, 2009 | 1999 Volvo V70

1 Answer

Car is cutting out badley on incline


You might consider a new fuel filter, and also check the fuel pressue

May 11, 2009 | 2001 Lincoln LS

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