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Big Rigs & Semis Discussion of Diesels Used for Transportation of Goods

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ok im having a hard time here. i have a 96 international 4700 rollback with the navistar t444e engine. my father said it died then started and ran, then died and wouldnt run. i have been dickin with it and cant figure it out. it ... JOIN NOW TO REMOVE TRACER

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  #1  
Old 11-24-2010, 11:28 AM
Diesel Fan

   

Default international 4700 t444e NO START

ok im having a hard time here. i have a 96 international 4700 rollback with the navistar t444e engine. my father said it died then started and ran, then died and wouldnt run. i have been dickin with it and cant figure it out. it has crystal clean fuel, new fuel filter, cleaned the pre-filter screen, new cam sensor, and i tried an idm out of an f-350. it cranks nice and fast and has 40 to 50 psi of fuel pressure. i pulled the icp sensor out and turned it over and it is pumping oil, im just not sure how to test how much, or how to test if the sensor is working. also, any idea how to test if the idm is geting power or of the injectors are getting any kind of signal? i dont see any smoke of any color while cranking. im baffled. any input would be great. thanks
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Old 11-24-2010, 11:33 AM
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have you tried to see if it will start on starting fluid.

diesel pap's Sig:Dodge Cummins Electric Blue Mega Cab
AFE Intake, Smarty, Edge Juice W/Attitude(for gauges), Mighty Diesel Head Bolts, 5" Magnaflow, Royal Purple & Mag-Hytec Deep Tranny Pan

1997 Cummins 3500 Dually ~ AFPA 8000# Modified Street Diesel Class Points Champion for 2011 ~
~ AFPA 8000# Modified Street Diesel Class Points Champion for 2013 ~


& 1991 W250 Dually


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Old 11-24-2010, 11:42 AM
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ya it will run on starting fluid but thats it. when the spray stops, the fire stops. i hate using that stuff but it i had to try it
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Old 11-24-2010, 08:49 PM
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We a have a fleet of these at work and its a regular problem. We have a scan tool to read icp but if you don't this method works too.
When cranking you should hear the injectors making a clicking noise. If you don't hear them you more than likely have a stuck ipr or oil got the best of the wires going to it and it needs those wire replaced. IHC sells a kit if thats the case

white93's Sig:1993 D-250. A few towing mods.
1991 D-250 Bone Stock.
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  #5  
Old 11-25-2010, 05:16 PM
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if its bad icp it will crank and act like it wants to start, maybe even barely rough run for 30 seconds or so, then die.

farmingsthelife's Sig:Early '99 7.3 Powerstroke. F-350, dually, 6 speed =]
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Old 11-29-2010, 01:19 PM
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whats ipr? and how do i know it has oil pressure for sure? i think i might just throw an icp sensor in it just to eliminate that. i thought about the oil getting the best of the wires and it seems a lil unlikely that it would happen to both sides. i am almost positive the injectors do not click.
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Old 11-29-2010, 01:40 PM
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The ipr (injector pressure regulator) is a little valve that controls the pressure going to the oil rails in the cylinder heads. It resides down in the valley towards the front of the engine. Over time it tends to get clogged up with debris and can get stuck closed causing low power or no start conditions. I would replace the ipr and icp and it should start,worst case senario it could need a hpop.

Heres a site that kinda show what im rambling about.
http://www.fordtechservice.dealercon...iagnostics.pdf
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Old 11-29-2010, 03:19 PM
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that would suck, abotu how much are reman HPOPS going for
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  #9  
Old 11-29-2010, 07:48 PM
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A reman is about 1100 from International. They usually don't go bad unless you never change the oil or get the oil contaminated with lots of fuel or water.
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  #10  
Old 11-30-2010, 01:07 PM
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ok thanks. im gonna order up the ipr and icp today and hopefully get them installed in the next couple days.is there any cleaning to the old ipr? or strictly just replace? im hoping it doesnt need a HPOP.. thanks for all your help. i will keep you updated
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