99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Started romping on it after 3 miles, i lost boost, then fuel, and the truck died.
Ok, so while it was running, how was it running. Like normal? Similar power, response, smoothness? Did the temp gauge come up to where it normally lives?
When you were losing boost, was it gradual with steady throttle? Did it sharply fall off.
How do you know you lost fuel, do you have a gauge, could you here the pitch of the engine change from a knock knock, to more of a clack clack?
Really weird, if all this happened rapidly, I'd be looking at the electronics, if gradual, it could still be mechanical problems (HPOP) If you do replace that, get with Bob, he's the man... I have one and love it! I have lots of pics from my install if your interested.
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Early 99' Upgraded to 99.5' F250 XLT SWB PSD, 4x4, GPT38, EBPV Delete, Perf Friction 2-pcs rotors, 4" turbo back exh, Ford AIS, 6leaker OEM cooler, Htr Core by pass valve, Synthetic every fluid (Mobil), Detroit LOCKER, BTS, Lunar Autometer gauges, DP-F6C, 235k mi SVO ConversionUpdated SVO stuff
Ok, so while it was running, how was it running. Like normal? Similar power, response, smoothness? Did the temp gauge come up to where it normally lives?
When you were losing boost, was it gradual with steady throttle? Did it sharply fall off.
How do you know you lost fuel, do you have a gauge, could you here the pitch of the engine change from a knock knock, to more of a clack clack?
Really weird, if all this happened rapidly, I'd be looking at the electronics, if gradual, it could still be mechanical problems (HPOP) If you do replace that, get with Bob, he's the man... I have one and love it! I have lots of pics from my install if your interested.
I was going stop/go and trying to romp on it every stop light to help blow the excess oil out of the cylinders. I got caught up in some traffic and had to behave, then i had an opening, and went to punch it, i noticed no boost and it was not responding, but still running, this lasted maybe 1/4 mile, then the truck just cut out, and i coasted to a stop. I thought maybe it was the cps, but it was somewhat gradual in the sense the truck was still running, but very very poorly for a 1/4 mile then died, before that, it ran just fine and seemed normal
That sure sounds like a lack of fuel to me. These trucks will still run without a working fuel pump if the fuel system is tight, as the injectors are little tiny pumps and will draw fuel from the tank. But they can't develop any power without the fuel pump to force feed the injectors (so to speak).
Recheck your fuel delivery. Be sure the pump is running (reset button at the passenger's kick panel), and open the drain valve then turn the key on to check for a good healthy flow.
Hey for giggles, how much fuel do you have in the tank right now?
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Early 99' Upgraded to 99.5' F250 XLT SWB PSD, 4x4, GPT38, EBPV Delete, Perf Friction 2-pcs rotors, 4" turbo back exh, Ford AIS, 6leaker OEM cooler, Htr Core by pass valve, Synthetic every fluid (Mobil), Detroit LOCKER, BTS, Lunar Autometer gauges, DP-F6C, 235k mi SVO ConversionUpdated SVO stuff
Last edited by CPUNeck; 12-15-2009 at 09:50 PM.
Reason: language
Hey for $#*& and giggles, how much fuel do you have in the tank right now?
a little over 3/4 of a tank
Quote:
Originally Posted by klhansen
Recheck your fuel delivery. Be sure the pump is running (reset button at the passenger's kick panel), and open the drain valve then turn the key on to check for a good healthy flow
Are you talking about a reset button that i press? when you say pass kick pannel, i'm thinking something inside the truck in the pass footwheel area under the glove box along the fender? I'll check the drain plug this afternoon. It's stuck over at my inlaws right now and haven't been over there since Friday afternoon.
Are you talking about a reset button that i press? when you say pass kick pannel, i'm thinking something inside the truck in the pass footwheel area under the glove box along the fender?
Yep, that's the one. There's a hole that you reach down thru to push the reset button. It's supposed to trip if you hit something hard enough, but could have dropped out without an impact.
Well finally got the truck back in good running order. Turned out to the be a bad HPOP. It would only build 175psi trying to start, and would occasionally spike to 700psi, and drop back down. I would like to personally thank the Ford Dealer here in town Western Slope Ford, for not doing a competent job in diagnosing the problem, and sending me on a wild goose chase, replacing the IPR Valve $300, Injector Orings, Glow Plugs, glow plug relay and UVCH, as well as their $200 diagnostics fee
After speaking to quite a few people about powerstroke repair shops in town, i ended up taking it over to Mercer automotive to have them go through it. I suspected it was the HPOP, but most people in the industry said those rarely go bad, so before i went out and dropped $800 on a new HPOP, i wanted a shop to thoroughly test it. Mercer did, and got it running again If the Ford Dealer had done their job correctly, they would have tested the pump as soon as they found a High Preassure Oil leak in the system, but instead, they made some assumptions and sent me on my way Alll of those things were probably not bad maint items, it just frustrates me that i paid that fee to have em look at it, and they got it WRONG, and they are the damn dealer
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), AIS, 
could have dropped out without an impact.
If the Ford Dealer had done their job correctly, they would have tested the pump as soon as they found a High Preassure Oil leak in the system, but instead, they made some assumptions and sent me on my way 
Alll of those things were probably not bad maint items, it just frustrates me that i paid that fee to have em look at it, and they got it WRONG, and they are the damn dealer 
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