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Old 07-27-2011, 03:49 PM
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number 7 cylinder not firing

I have a 2003 F-150 supercrew with a 5.4 litre the service engine soon light cam on so I had a parts store hook up their computer and it said the number seven cylinder is not firing so I bought a coil and plugs, looking to find out if anyone knows which cylinder number seven is?
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Old 07-27-2011, 03:55 PM
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Originally Posted by cullscott View Post
I have a 2003 F-150 supercrew with a 5.4 litre the service engine soon light cam on so I had a parts store hook up their computer and it said the number seven cylinder is not firing so I bought a coil and plugs, looking to find out if anyone knows which cylinder number seven is?
Third one back on the passenger side.
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Old 07-27-2011, 04:09 PM
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thanks Blue Jay
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Old 07-27-2011, 04:12 PM
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Third one back on the passenger side.
I found a diagram that shows it the third on the drivers side?
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Old 07-27-2011, 04:18 PM
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That diagram is correct. My only excuse is a dyslexic moment! Sorry about that.
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Old 07-27-2011, 04:25 PM
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found two diagrams that show # 7 third one back on drivers side
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Old 07-27-2011, 04:26 PM
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Originally Posted by cullscott View Post
found two diagrams that show # 7 third one back on drivers side
Yes, that is correct
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Old 07-27-2011, 04:37 PM
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ok, thank you very much, lets see if I can do this without breaking anything
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Old 07-28-2011, 06:56 AM
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#7 is the worst one. 3rd one back on drivers side. Covered by fuel regulator.
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Old 08-01-2011, 12:32 AM
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Originally Posted by Norm View Post
#7 is the worst one. 3rd one back on drivers side. Covered by fuel regulator.
You can still get a socket on the cop bolt, kinda offset enough to get it off without stripping the bolt head since there's not (or shouldn't be) much torque on the bolt. I do it every time with the fuel rail on.
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