1999 7.3L Powerstroke die in the parking lot HPOP no pressure on gauge. HELP ! - Page 2 - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #16 of 45 (permalink) Old 04-29-2016, 11:01 AM Thread Starter
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And if it could help, the last 30 seconds my truck run was like that : the engine seem to run on half of it's cylinder and had absolutly no power then 30 sec later it shut down but itself... (Maybe a lost of oil in the hpop lines)
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post #17 of 45 (permalink) Old 04-29-2016, 04:25 PM Thread Starter
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I've bypassed the ICP directly on the 12V battery and still no press...
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post #18 of 45 (permalink) Old 04-29-2016, 05:23 PM
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Hopefully you meant IPR on 12 volts direct


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IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #19 of 45 (permalink) Old 04-30-2016, 02:08 AM Thread Starter
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Yes !
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post #20 of 45 (permalink) Old 05-02-2016, 08:49 AM
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Just wanted to know what you found out on getting your truck running. Was it the hpop went bad?


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post #21 of 45 (permalink) Old 05-02-2016, 10:29 AM Thread Starter
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Just wanted to know what you found out on getting your truck running. Was it the hpop went bad?


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Hi ! My truck still not running at this time. I didn't found the problem yet. Still searching !
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post #22 of 45 (permalink) Old 05-04-2016, 07:18 PM Thread Starter
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So guys, i've still not figured the problem out.

- CPS is new
- Alternator is new
- Air Dog 2 is new
- IPR is new
- HPOP T-500 is new
- All new hoses
- Injector O-ring are news (Motorcraft)
- LPOP is new (Melling)

My Autometer gauge are showing that I have plenty of fuel pressure but non HPOP press.

Oil reservoir is full, HPOP gear is torqued at 95 lbs/ft, i've disconnect the ICP sensor to be sure it not in trouble. I've plugged directly the new IPR on the 12V battery. My batteries are fully charged and new from the last year. Every grounds are new and clean.

I've read a lot but now i'm out of ideas.

Could you help me guys ?

Late 1999 Black F-350 Lariat ZF6 ECLB, DP-Tuner, MBRP 4'' Stack with 7'' miter cut exhaust pipe, T-500 Modded pump, Air Dog 2, IH bellowed up pipes, Wicked Wheel, AFE Intake, Driven Diesel Regulated Return & Fuel bowl delete, Upgraded banjo bolts, Autometer Gauges, AI Delete plug, RiffRaff OCR, Intake plenum, Boots, SoutBend clutch...
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post #23 of 45 (permalink) Old 05-04-2016, 07:36 PM
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What kind of high pressure oil gauge - a mechanical gauge directly connected to the high pressure oil rail or an electronic gauge relying on the ICP sensor? If its the latter, then we can assume the PCM isn't getting a signal and not firing the injectors. I would want to see if that value is accurate. You need to go ahead and put a mechanical gauge on it and see what's really happening. Then you need to dead head each side of the HPOP output to see if one side is responsible for the full pressure leak down. Then we can try and find out what's causing it.

2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #24 of 45 (permalink) Old 05-11-2016, 01:45 PM Thread Starter
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Could it be the IDM ? It look rusty... ???
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post #25 of 45 (permalink) Old 05-11-2016, 09:56 PM
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It could be the IDM. If the PCM has lost communication with the IDM, it will throw a check engine light and a code.

If you have the capability to run an injector buzz test, you could determine real quick if it was the IDM. If the injectors all buzz, the IDM is fine. If one or more don't buzz, an IDM failure is possible. IDM don't fail very often. You say yours is rusty - if it rusted all the way through the case or the IDM case seal is bad, water could easily get into the IDM and wreak havoc. You could remove the IDM and open it up to check for signs of water intrusion. If you know a buddy with a 7.3, see if you can borrow the IDM and try it on your truck.

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post #26 of 45 (permalink) Old 05-11-2016, 11:08 PM
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Hey International, check your fuses first. Especially #30 (I think on trucks) it is the one for the fuel bowl heater and also shuts down computer.

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post #27 of 45 (permalink) Old 05-15-2016, 08:09 AM
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It could be the IDM. If the PCM has lost communication with the IDM, it will throw a check engine light and a code.
A bad IDM won't cause low ICP.

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post #28 of 45 (permalink) Old 05-15-2016, 08:11 AM
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Hey International, check your fuses first. Especially #30 (I think on trucks) it is the one for the fuel bowl heater and also shuts down computer.
If he's able to connect to and read data from the PCM, the fuse is good.

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post #29 of 45 (permalink) Old 05-16-2016, 01:42 AM Thread Starter
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I'll give you news as soon as i've got my new parts and my PCM back !!
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post #30 of 45 (permalink) Old 05-24-2016, 02:25 PM Thread Starter
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Guys, i've just received some news from SIA Electronics. They said my PCM can't be repared because they are multiple failed component. They give me the serial number of the part (XC3F-12A650-AD).

Can i swap the old one with a used good one ?

Check at the link below and tell me if this could work ?

99 Super Duty F250 F350 7 3L Diesel MT ECU PCM Engine Computer XC3F 12A650 Ad A | eBay

Waiting for your news. Thanks !!!

Original message from SIA :

Hi,

Unfortunately your ECM cannot be repaired. There are multiple failed component on this board that have been replaced to no avail. The eprom has failed and that is not a repairable or replaceable component on this type of ECM. We will be returning this module not repaired. You have been issued a refund through PayPal already. The part number you have sent in is XC3F-12A650-AD

If you would like to speak to someone at SIA Electronics about your part please call us at 800 737 0915. Business hours are M-F 8-4:30 CST

Thanks
SIA Electronics
800 737 0915

Late 1999 Black F-350 Lariat ZF6 ECLB, DP-Tuner, MBRP 4'' Stack with 7'' miter cut exhaust pipe, T-500 Modded pump, Air Dog 2, IH bellowed up pipes, Wicked Wheel, AFE Intake, Driven Diesel Regulated Return & Fuel bowl delete, Upgraded banjo bolts, Autometer Gauges, AI Delete plug, RiffRaff OCR, Intake plenum, Boots, SoutBend clutch...

Last edited by International444; 05-24-2016 at 03:15 PM.
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