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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

       
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Old 03-14-2006, 08:48 PM   #1 (permalink)
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help me please

Okie i'm hoping you can answer this question or questions i have first what is a IP and 2nd my truck is acting really weird. First of all my truck died while at a stop bout 3 or 4 days ago thought it was bad diesel so i put of diesel treament in it. That didnt work. So i changed the fuel filter. That didnt work. So i got a injector return line kit. I put that on. Now it will start up with a lil bit of starting fluid but it will run for about a min or so then again act like it has bad diesel and just dies. Then it wont start at all unless i leave it over night then it does it again.

Any help at all please

thank you
Never mind i figured out what IP is o and its not the lift pump i put a new one on about a month or so ago and i know that im geting fuel to the fuel filter
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Old 03-14-2006, 09:47 PM   #2 (permalink)
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Re: help me please

Do you have fuel going into the ip? How old is the ip and injectors? Do you have power to the front electrical connection on top of the ip? I'm guessing you need the ip and injectors rebuilt.
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93 F250, regular cab, 4x4, 7.3 NA, ZF5, 3.55, 209k miles, came home 2/28/06, soon to be turbo.
92 250, regular cab, 4x4, 7.3 NA, E4OD, 3.55, 316k miles, came home 8/28/04, aluminium 16x7 wheels, 285/75/16 Sport King AT.
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Old 03-14-2006, 09:50 PM   #3 (permalink)
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Re: help me please

thanks do you know how much it might cost to rebulid both of them( i have about 130,000 miles and im sure they aint been rebuilt yet)
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Old 03-14-2006, 09:54 PM   #4 (permalink)
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Re: help me please

I've tried to get an answer to you but I'm having 'puter trouble. With 130k on IP it is time to rebuilt it. Try jumping a wire from batt+ to the FSS on drivers side of IP. Start engine and if this helps you might have the IP electrical connections in the wrong order. OkieG
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<font color="red">1987 F350, 4X4, Crew Cab, DRW, w/'91 7.3 TURBO-CHARGED BY ATS, no-Wastegate(Turbo rebuilt by me 7/2005)</font>, <font color="blue">E4OD Auto, Aux Trans Cooler w/12" fan, w/Baumann Programable Trans Computer-12/05</font>, Rebuilt Injection Pump-2/03, Electric Fuel Pump, Coolant Filter, "BajaGringo Block Drains, 5-Row Radiator Core-9/04, 2 New Plastic Fuel Tanks w/new Sending Units/Pickups, Fuel Filler Neck Mods, Air Ram Intake, Air-Lift SuperDuty AirBags with Smart Lift Auto Leveling-7/2005 <font color="blue">Link to Photo of "OkieGringo Idler Pulley"</font>
<font color="red">Link to GP Controller Diagram</font> <font color="blue">Link to "Electric Fuel Pump Wiring Diagram"</font>
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Old 03-14-2006, 10:28 PM   #5 (permalink)
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Re: help me please

I would first system a bad IDM relay (injector driver relay), or possibly a bad injection pressure regulator *** BEFORE *** you look at a mechanical problem. Also, check the fuse that feeds power to the IDM relay, and the PCM diode.

Check the wiring going ino the Injector Driver Module for any kind of damage. Don't forget the Fuel Pressure Rgulator on the side of the fuel filter housing. The spring and poppet valve in the Regulator get clogged or stuck and can cause the probelms you describe.

*** LAY OFF THE STARTING FLUID, unless you engine writing out large checks.
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Old 03-15-2006, 12:56 AM   #6 (permalink)
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Re: help me please

[ QUOTE ]
I would first system a bad IDM relay (injector driver relay), or possibly a bad injection pressure regulator *** BEFORE *** you look at a mechanical problem. Also, check the fuse that feeds power to the IDM relay, and the PCM diode.

Check the wiring going ino the Injector Driver Module for any kind of damage. Don't forget the Fuel Pressure Rgulator on the side of the fuel filter housing. The spring and poppet valve in the Regulator get clogged or stuck and can cause the probelms you describe.

*** LAY OFF THE STARTING FLUID, unless you engine writing out large checks.

[/ QUOTE ]

Hey wheeze, you are on the wrong forum. We don't have all that crap on our rigs down here in the basement. That crap is only on the PowerChokes [img]/ubbthreads/images/graemlins/eek.gif[/img]. OkieG
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<font color="red">1987 F350, 4X4, Crew Cab, DRW, w/'91 7.3 TURBO-CHARGED BY ATS, no-Wastegate(Turbo rebuilt by me 7/2005)</font>, <font color="blue">E4OD Auto, Aux Trans Cooler w/12" fan, w/Baumann Programable Trans Computer-12/05</font>, Rebuilt Injection Pump-2/03, Electric Fuel Pump, Coolant Filter, "BajaGringo Block Drains, 5-Row Radiator Core-9/04, 2 New Plastic Fuel Tanks w/new Sending Units/Pickups, Fuel Filler Neck Mods, Air Ram Intake, Air-Lift SuperDuty AirBags with Smart Lift Auto Leveling-7/2005 <font color="blue">Link to Photo of "OkieGringo Idler Pulley"</font>
<font color="red">Link to GP Controller Diagram</font> <font color="blue">Link to "Electric Fuel Pump Wiring Diagram"</font>
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Old 03-15-2006, 12:27 PM   #7 (permalink)
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Re: help me please

Here is a very good company that I have used to obtain parts. They carry new and rebuilt injection parts and pumps. Lone Star Fuel Injection actually provides a lot of the parts and pumps to the new car dealerships and repair shops across the country. Hope this helps and there is always E-Bay.
http://www.lonestarfuelinjection.com
http://www.diesel-fuel-injection.com
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Old 03-15-2006, 01:03 PM   #8 (permalink)
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Re: help me please

thanks everyone and ill get back to yall and tell yall what works thanks again
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