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1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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Misfire

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Old Aug 4, 2022 | 07:39 PM
  #1  
klausd's Avatar
klausd
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Cross-Country
Joined: Jan 2021
Posts: 58
Likes: 1
From: cheney
Misfire

So I have been throwing a misfire code on cylinder 10 on my 1999 f250 super duty, i replaced my coil pack and it is there again today, other than a bad coil pack what else can cause that?
 
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Old Aug 5, 2022 | 01:20 AM
  #2  
Tunafish389's Avatar
Tunafish389
More Turbo
Joined: Jan 2019
Posts: 533
Likes: 78
Spark Plug would be first.
then injector
Wiring
PCM
valves
cam shaft
 
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Old Aug 5, 2022 | 12:03 PM
  #3  
Djosbun's Avatar
Djosbun
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
Use a noid light on the #10 injector to see if it’s being commanded on.

— Dave
 
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