7.3 injector swap advice needed - Ford Powerstroke Diesel Forum
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Old 11-27-2012, 07:19 AM
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7.3 injector swap advice needed

recently i pulled my valve cover off the driver side of my '01 f250. it was "loping" and i feared the injector was going out. i pulled each harness and sure enough the #8 was not firing. i pulled it out and replaced it with the same "AE" long lead injector. i draind the oil out of the hpop and the cylinder and glow plug hole to avoid the hydrolock. this was a few days ago. i had to wait for the new injector to arrive.

yesterday the 26th
**UPDATE**
ok everyone. here's the update. kinda strange, but here it goes. i replaced the injector and it started. (a success in every sense of the word) anyway, it smoked like crazy (i expected that) at the tailpipe it usually sounded like a gasser missing a spark plug with its sorta "lope" . this time, it sounded like a hairdryer. breathing freely like it should. i could actually hear the turbo a little. i let it run a few minutes. i shut it off to finish putting it back together. re-started and the fun was over in 5 minutes. LOPE LOPE LOPE...WHY???!!! it runs the same, smokes the same and has little power. is my new injector shot?
i think ill be pulling the valve cover again and checking. i did not change the wiring harness/valve cover gasket because it was in good shape. are the wires to the injector bad? a friend said that its possible with all the moving around of the wires i might have made a temporary connection and it just quit again. how do i check?
should i just "****-can" the truck and buy a dodge? (LOLOLOLOLOL) sorry..momentary lapse of reason...what do i do next? drop it off at the shop? money is scarce these days.
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Old 11-27-2012, 07:41 AM
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Do the "50cent" mod to that UVCH connector at least. Give those connections a second look when you're in there...

Here's a good vid;

http://www.youtube.com/v/GHwjEfJtM_g&hl
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Old 11-27-2012, 08:02 AM
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thanks, noralph...thats an excellent suggestion. it shows the whole driver side missing though. think it can help on just one injector? im not showing any codes or and check engine lights either. ill pull it anyway. only cost a quarter to figure out
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Old 11-27-2012, 08:36 AM
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Yea, it's not like it's completely unplugged or anything as in the video but, the way you describe it returning after putting it back together, and this being such a common issue, it is worth doing. You could also have a burnt pin making an intermittent bad connection too.

What are you using to scan it with? You know these trucks are not, strictly, OBD-II and a generic OBD-II scanner is of little use. You need a professional tool that will do a "buzz test" (Ford, Snap-On, AutoEnginuity, etc). And that test would help you a lot right now

A good scanner would then be able to read the IDM codes (if any) that would be generated after that test too...
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Old 11-27-2012, 08:54 AM
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gonna take a while to get the air out also. Just idling for a few minutes is not going to do it.
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Old 11-27-2012, 10:38 AM
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ive driven it several times and it runs just like it did before the injector swap. smells like raw fuel at the pipe. im afraid i might be looking at a dropped cylinder. if i did, anyone wanna buy it??lol
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