02 7.3 runs like crap - Ford Powerstroke Diesel Forum
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Old 07-25-2010, 10:54 AM
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02 7.3 runs like crap

mods in sig, was running fine all day prolly put 60or so miles on it and towed a buddies car as well no issues. left to go pickup oil for the womans xterra and half way there lost power, ran really rough and then stalled. sat a few min restarted and major power loss and horrible vibration while driving. stalled again pulling into parts store......NO CODES at all. after stalling 4-5 more times i got it home. has no power at all when it does run. smokes white while reving in nuetral. did basics checking fluids and such to no avail. only thing a bit odd to me atleast is the wires going to the icp sensor are really soft and squishy. please help cause my brother cant come down till monday night too look it over and i gotta get to work monday
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Old 07-25-2010, 11:17 AM
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Check fuel pressure. Sending unit in tank could be stopped up.
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Old 07-25-2010, 11:24 AM
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humm blown oring on an injector maybe cuasing loss of oil and fuel pressure....
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Old 07-25-2010, 11:28 AM
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Can you get it on a good scan tool for diesels? Do a buzz test to see if the injectors are all firing. You could have burned off an under valve cover harness. So only 1 bank of cyls would be firing. Check that and possibly the IDM or injector drive module.
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Old 07-25-2010, 11:32 AM
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well the biggest pita is i dont know crap on diesels yet im a gas motor guy so im learning right now. my brother can come monday night after work and he is a diesel guy(6 months of international schooling) and has alot of the tools to check it which i have none of. also sucks is i dont even have all my tools here as i just moved in here at the beginning of the month.

oil/filter/fuel filter were also changed less than 500 miles ago
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Old 07-26-2010, 03:10 PM
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i think its a cam shaft senser the way it sounds
did the cheack engine light come on at all
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Old 07-26-2010, 04:34 PM
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replaced cam sensor today and no change. icp sensor had oil bleeding through it and my brother had a used one we tossed in and all was well. put about 12 miles on it and it started acting up again.......im gonna buy a new icp sensor and pigtail to replace the ratty connector thats there now. no codes whatsoever
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Old 07-27-2010, 02:51 PM
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ok icp sensor/harness replaced and still no go. brother is gonna bring down f/p guage to test that. its just weird it works a little then craps out
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Old 07-27-2010, 02:57 PM
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Strange that it's not throwing any codes. Also strange how that if you let it sit, it'll run till it dies again. Sounds like something is getting sucked up...chocking the motor, stalling it, and then as you let it sit, whatever it is settles back down, and allows you to start the motor again. interesting...
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Old 07-27-2010, 03:25 PM
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yea i know. theres roughly 1/4 tank in it and since i have owned it this is about the lowest its been. i flipped the key on a bit ago and hopped under the truck to listen to the pump and i think that might be part of the problem. it kept changing pitch while doing its priming cycle
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