HELP! #8 misfire detected? - Ford Powerstroke Diesel Forum
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Old 06-28-2011, 08:33 PM
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Question HELP! #8 misfire detected?

ok so i talked to my local mechanic cause my truck was ildling rough, seemed down on power, and kept sending the code #8 injector misfire detected. he said try a cam sensor cause the recall ones sometimes throw a false code or cause rough idle. i have since tried an international and carquest cam sensor both and it still throws the code and runs rough. tonight i put a new AE injector in and vavle cover with wiring the new wiring. my truck idles way smoother and has alot more power again but i clear the misfire code and it comes right back. i have no clue where to go from here. anybody have any suggestions? thx for any ideas that u guys may have
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Old 06-28-2011, 08:46 PM
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oh yeah i changed my fuel filter tonight too just because i thought maybe it was getting starved of fuel, but i guess not
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Old 06-30-2011, 09:20 AM
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How many miles on that motor? I would do a compression check on a few cylinders starting with #8, mine had a cracked ring in #8. #8 is the worst cylinder on the 7.3 to have problems, partially because it gets starved for fuel since its the last one in line. I have taken apart 4 engines and all of them the #8 cylinder has been the worst.

I wish you luck.

Paul
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