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Old 09-11-2017, 08:18 PM
97vanswap 97vanswap is offline
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got stuck with truck

engine felt like it was running out fuel, injectors were clacking. I got home put on AE and it has a low high open on the code reading. took valve cover off and plug came out. I did the quarter modification.

Anyway took the truck out a few days later truck drove ok when cold then after about an hour it lost power again and started clacking until it died out. I had to stop and let it cool off about 10 times before i made it home. I changed ICP sensor. took it out for ride and about ten minutes later same thing. I have to let oil temp get down to 165 before i can drive it again.

When i first drive it Icp pressure is about 500 at idle and 2650 at full throttle, that is until it starts clacking again and losing power then the engine wont take any throttle..and ICP duty cycle is at 26%

Would bad IPR do this??
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Old 09-11-2017, 08:25 PM
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I would say next time have a compressed air can turned upside down and spray the ipr, or if it's all you have a large cup of ice. If it starts right up you'd know it's the ipr
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Old 09-11-2017, 08:43 PM
97vanswap 97vanswap is offline
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good idea.
codes p1211 icp high lower than desired
p1212 icp lower than desired engine crank or run
9\p1247 turbo boost low
p1280 icp sensor circuit low
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Old 09-11-2017, 11:32 PM
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It could very likely be fuel delivery. Do you have a FP gauge? Stalling and a 1211 are both common with plugged fuel pickup or screens. Not having fuel will throw codes because the engine cannot build ICP or boost. It's a symptom rather than a cause. Letting it "cool down" is actually letting debris fall away from the pickup for another short run. Sometimes blowing compressed air back into the tank from the fuel pump inlet will "fix" it for a short time.
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Old 09-12-2017, 05:04 PM
97vanswap 97vanswap is offline
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could be i dropped tank today. filter baskets don't fit very well .loose around base.
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Old 09-12-2017, 05:51 PM
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Hutch and harpoon mods before you put it back together, prevent issues down the road.

Sounds more like a bad IPR tho.
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Old 09-12-2017, 08:59 PM
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Oh yeah, those look awful. Hutch mod for sure unless you want to go thru this again. Prolly want to clean the tank out too. Is your tank steel or plastic?
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Old 09-12-2017, 09:19 PM
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Originally Posted by aawlberninf350 View Post
Hutch and harpoon mods before you put it back together, prevent issues down the road.

Sounds more like a bad IPR tho.
Curious why you think it is the IPR when those pickup screens are obviously completely clogged.
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Old 09-13-2017, 01:24 AM
97vanswap 97vanswap is offline
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Plastic tank and it looks clean for the most part. I did notice the metal plate where the wire is grounded to sender is rusted corroded pretty good. and the fuel bowl element heater is also rusted and scaled well. I would have thought diesel would have preserved the metal.
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Old 09-13-2017, 05:50 AM
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Fuel starvation. Hutch & harpoon time.
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Old 09-13-2017, 08:38 AM
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Quote:
Originally Posted by bigb56 View Post
Curious why you think it is the IPR when those pickup screens are obviously completely clogged.
I was thinking IPR as well because it was acting up when hot but I'd do that Hutch/Harpoon mod and see if it didn't fix it before I added the IPR to the job. Those are some clogged screens.
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Plastic tank and it looks clean for the most part. I did notice the metal plate where the wire is grounded to sender is rusted corroded pretty good. and the fuel bowl element heater is also rusted and scaled well. I would have thought diesel would have preserved the metal.
Could have had water in that fuel bowl, which would cause it to rust. That is where it would collect.
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Old 09-13-2017, 12:43 PM
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Quote:
Originally Posted by bigb56 View Post
Curious why you think it is the IPR when those pickup screens are obviously completely clogged.
Not really clear how clogged those screens are. Also...

Quote:
Originally Posted by 97vanswap View Post
Anyway took the truck out a few days later truck drove ok when cold then after about an hour it lost power again and started clacking until it died out. I had to stop and let it cool off about 10 times before i made it home. I changed ICP sensor. took it out for ride and about ten minutes later same thing. I have to let oil temp get down to 165 before i can drive it again.

When i first drive it Icp pressure is about 500 at idle and 2650 at full throttle, that is until it starts clacking again and losing power then the engine wont take any throttle..and ICP duty cycle is at 26%
The bolded bits above sound like a failing IPR, especially the duty cycle stuck at 26% part. Literally a stuck IPR. The temps might just be coincidence, not causation, but that's how the OP saw it as he lived it. I agree it could simply be partially clogged screens. Maybe each time it stalled was uphill while loaded, for example. Lack of fuel will tank the ICP for sure. But the description of the symptoms is concise, and it sounds IPRish to me.
Remote diagnostics is way more bar game than science.
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Old 09-13-2017, 09:27 PM
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Yep remote diagnosis can be tricky to say the least. Waiting to see how it turns out and who buys the beers
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Old 09-15-2017, 08:15 PM
97vanswap 97vanswap is offline
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Took it for same ride x2 and i didn't get stuck this time. Seems cleaning the filters fixed the issue. I didn't have time to do the hutch and harpoon. Well actually i had the pvc cutters right next to the tank. But the hardest part of the job was getting that bitch of plastic screw on ring for the sender to go on even and catch the threads. I plan on putting a flat bed on in spring hopefull i can pull the sender from the top. It's definitely not a good set up. Better to remove the darn filters and put an inline before the pump this way it's easy to clean without taking the damn tank down.

the little brown flakes are rust i put a magnet in the residual fuel and the same rust particles that clogged the filters were on the magnet. Dropped a few round neo magnets in the tank as well. If don't get back to this thread that means all is well.

thanks everyone! 7.3 rides again just hope i didn't mess up the hpop or injectors!!!!

PS bought the truck in 2012 with 299k miles.5 years later she reads 315,000. cab rusting apart and oil pan rotted.
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Old 09-15-2017, 11:45 PM
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I had a tough time with that plastic ring too until I decided to lay it in the sun and walk away for a while. After that it went right on, course it was 100+ in the sun.
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