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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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
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(2) Clean out fuel injector machined bores in
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(4) Position fuel rail/fuel injector assembly to
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Push left fuel rail down until injectors have bottomed
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(8) Install 6 ignition coils. Refer to Ignition Coil
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To install connector, refer to (Fig. 37). Push connector
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by lightly tugging on connector.
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Oct 07, 2014 | Jeep Cars & Trucks

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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.


Mar 02, 2011 | Toyota Camry Cars & Trucks

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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 oncallmech

Jan 10, 2011 | 1992 Ford F250

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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!

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Put a new fuel pump on a 98 s-10. It ran for a day and 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.

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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

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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,

Oct 19, 2009 | 1994 Chrysler Concorde

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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

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May 11, 2009 | 2001 Lincoln LS

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