Question about 2002 Ford F250 Super Duty SuperCab

2 Answers

F250 HPOP NO Start

We have just changed out the high pressure oil pump on a 7.3 diesel 2002 aust f250 because it was leaking oil profusely into the valley. We have not been able to start the vehicle since. It winds over but will not fire.
Any suggestions or help would be appreciated thx

Posted by on

  • 5 more comments 
  • bmorrison122 Jul 30, 2010

    Ok i will give it a try thx. We currently have 50psi when cranking. Is that enough to start

  • bmorrison122 Jul 30, 2010

    So what pressure should we see when cranking?

  • bmorrison122 Jul 30, 2010

    Hmmmmm, we put the gauge in the bung in the back of the rail and got 50 psi. is there somewhere we can check on either side of the pump.

  • bmorrison122 Jul 30, 2010

    Thats also where we bled the air out of the system

  • bmorrison122 Jul 30, 2010

    hmm ok will give it another go. So all signs point to air in the oil lines so far yeah.

  • bmorrison122 Jul 31, 2010

    the injectors are underneath the tappet covers. Is there nowhere else to bleed the system

  • bmorrison122 Jul 31, 2010

    "Since you mention 7.3L POWERSTROKE, I'm assuming you are referring to a 7.3L DIT engine from model year 1995 to 2002, since you didn't specify it in your question. With that said, it depends on the model year. '99 model year and up eliminated the use of the mechanical tandem pump along with its return type fuel system. Fuel is delivered to all eight cylinders by way of "HUEI" injectors. In other words, fuel delivery is controlled by engine oil pressure. Not to be confused with lubrication oil pressure, the high pressure oil system is what controls the amount of fuel delivered to each cylinder by regulating the oil pressure called ICP (injector control pressure), depending on the engine's operating conditions. On these engines, the fuel rails are cast into the cylinder heads, where there are fuel supply lines connected to the front corners, from the fuel filter/heater housing in the center of the engine. Below that, is the high pressure oil pump and IPR (injector pressure regulator) with two steel braided lines connected to each of the cylinder banks. The question is WHY you need to figure out how the fuel system works, and maybe I'll be able to answer your question better in a way that will be more useful to you. Hope this helps."
    This is correct for my engine!

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Habit-Forming:

    Visited the website for 3 consecutive days.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 137 Answers

Fill the reservoir . It's the Allen plug on top in front of filter

Posted on Nov 15, 2014

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,309 Answers

If you are talking about the injector pump it will need to be bled, loosen the fuel lines at the injectors and turn theengine over till you get fuel out of them all close them and start engine it may take a little to get it started, then loosen each injector one at a time to purge any air left in the system

Posted on Jul 30, 2010

  • 2 more comments 
  • starrface Jul 30, 2010

    nay air in the fuel system on a diesel will cause problems, cause air compresses and fuel does not, and pressure opens the injectors, very high pressure

  • starrface Jul 30, 2010

    never tried it on the injector side of the pump , thats why the have solid steel lines, its way up like 2600lbs

  • starrface Jul 30, 2010

    the high side is set during manufacture, with specialized equipment, so i wouldn't go there, you got 50 on the low side which should be good, ps they can be a ***** to bleed, sorry for the language

  • starrface Jul 30, 2010

    good luck , sorry i can't be of more help

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Just changed the fuel filters in my 2008 ford diesel f250 now idles rough


The HPOP (high pressure oil pump) is right under the filter housing. There are 2 lines that distribute the oil to the cylinder heads. The o-rings on those fittings go out. Kit is available from Ford or International. You will need a special wrench to get to the fittings though.

Sep 12, 2012 | 2008 Ford F 250 Super Duty 4WD

2 Answers

I have a 2002 Ford F-250 Diesel 7.3 litre Super Duty truck. It is leaking oil from an area beneath the fuel filter. What part would I need to repair this leak?


there are 2 high pressure lines that attach to the high pressure pump near the front of the engine left side. the o rings leak. I would get them from the dealer, or a shop that does a lot of Diesel work. Its not a easy job.

Aug 31, 2010 | 2002 Ford F250 Super Duty SuperCab

3 Answers

Oil ran out while driving..plug had came out. put oil & plug in & truck will not start. 2002 ford f250


You ran the truck out of oil? If so then you have seized the engine up and it wont start again. If your lucky the engine could be rebuilt using the same block but the internals will all need to be replaced.

Mar 07, 2010 | 2002 Ford F250 Super Duty SuperCab

2 Answers

2005 Ford F-250 won't start


replace the hpop(high pressuse oil pump) i had the same problem with mine, i replaced the fuel pump and ipr sensor and it wasnt it so i replaced the hpop and now it runs

Mar 03, 2010 | 2005 Ford F 250 Super Duty

1 Answer

How to adjust the fuel injection pump on a 04 F-250 6.0 diesel?


Umm wow where to start for starters there is no injector pump on a 6.0 its not a "common rail" design however it does have a hpop "high pressure oil pump" ok lets start at the tank there is fuel pump 110 to 140 psi now depending on weather you have a long bed or short bed changes a lot of things short bed single fuel tank the pump is mounted on the frame under the back of the driver ....dual tanks there in the tanks. the fuel goes up to the filter bowl/heater and is then fed to the injectors the fuel flows into the injector pushing the piston up in the cup and filling the injector with fuel when the IDM " Injector driver module" fires that injector a peizo valve opens and high pressure oil from the hpop "2200 to 4200 psi" drives the piston in the injector cup forceing the fuel out into a cylinder on its compression stroke and bang we get combustion so yeah I guess the point I was making is there is no injector pump ? but please post your issue and id love to help as I am pretty good at deisels :)

Feb 18, 2010 | 2004 Ford F250

2 Answers

I have a 99' F250 Super Duty 7.3 and i just changed the oil as soon as i started the truck the 'service engine soon ' light came on. I have put 4 different scanners on and no codes came up. I drove it and...


Try repriming your fuel system. On some diesels, when you replace fuel filters, you have to prime them. I dont see how that affects your oil though. Did you put all 15qts of oil in?

Feb 03, 2010 | 1999 Ford F250 Regular Cab

1 Answer

High pressure oil pump leak.


the high pressure pump provides the pressure to your injectors so the diesel luel can be injected at high pressure. You should fix this immediately. Call your dealer and ask for some help from Ford on the repair cost ahead of the repair. See what they will do.

May 27, 2009 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

04 f250 diesel cranks but won't start


this is an oil pressure problem, either a sensor is not sensing enough oil pressure, or the high pressure pump is not building enough pressure(possibly leaking or head is leaking). this engine requires 450 psi minimum oil pressure at the injectors to actuate the injectors.

Mar 22, 2009 | 2004 Ford F250

4 Answers

2000 ford f250 super duty 4x4 7.3L diesel oil leak


The HPOP (high pressure oil pump) is right under the filter housing. There are 2 lines that distribute the oil to the cylinder heads. The o-rings on those fittings go out. Kit is available from Ford or International. You will need a special wrench to get to the fittings though.

Jun 06, 2008 | 2000 Ford F250 Super Duty Crew Cabs

Not finding what you are looking for?
2002 Ford F250 Super Duty SuperCab Logo

812 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5516 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...