Loss of power - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 09-11-2019, 12:50 AM Thread Starter
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Loss of power

So I have a 01 7.3. It I ust recently started losing power intermittently. It’s throwing a p1209 and p1211 code. I’ll be driving and all of the sudden my ipr goes up to 94.9%. If I hold the throttle down after a little bit it’ll fix itself, pull really hard, Then when I let off the throttle it’ll usually go back to having no power. If I put it in neutral it’ll usually rev up on its own and fix itself until I get on it a little. I’ve replaced the hpop, ipr, icp, cps, pcm, idm, injectors, fuel pump, fuel filter, it has good oil. I pulled he tank, cleaned the screens, also pulled the fuel bowl and cleaned it. Fuel pressure is at 60psi. Icp is reading accurately and if I unplug it so the computer defaults it still does the same thing. Fuses are fine. It has a hydra tuner with 160/80 injectors. They’ve been in it for a little bit with no issues. I unplugged the chip and it didn’t fix it. I built the engine a year ago so it shouldn’t have any major internal issues. I’ve tried moving a bunch of the wires while it is at idle and it won’t cause the issue to happen unless I’m driving. I’ve had a lot of random stuff go bad on my truck and have had wiring issues that I’ve been able to figure out. But this one is fighting me. Any input would be appreciated.
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post #2 of 5 (permalink) Old 09-11-2019, 11:54 AM
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Re: Loss of power

The only issue I can think is you have a cracked pick up tube. You can try and jack the front of the truck up as high as you can and let it run. If it dies, its cracked. Usually you over fill the oil and jack to rear up to test it but that is for when the truck wont start. I would be leery to add too much oil and drive it but 2 qts extra wouldn't hurt I dont think.


So just to be clear. You had this issue before you changed all the parts right?

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals
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post #3 of 5 (permalink) Old 09-11-2019, 12:08 PM Thread Starter
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The idm, hpop, and injectors were replaced before the issue happened. They’ve all been replaced within the past year. Everything else has been replaced it tested good in the past week. I’ll have to try that thank you.
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post #4 of 5 (permalink) Old 09-11-2019, 12:21 PM
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Re: Loss of power

I would also check the hpop gear bolt to see if itís tight.

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals
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post #5 of 5 (permalink) Old 09-11-2019, 01:26 PM Thread Starter
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Okay. I’ll try doing checking those tonight. Thanks
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