Contribution balance cylinder #7

[atc500]

Just did studs one at a time dummy plugs stand pipes ,updated STC fitting and an egr ****** on a 2005 and now injector in cylinder 7 isn’t firing it passes a buzz test fine ficm was recently redone I double checked it and the harness truck has 63k Miles is it possible the lack of oil from draining the pump and rails wiped the injector out? I’m stumped on where to go from here


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[Petro]

Unplug that Injector and check the pins on both the male a female sides of the plug. Sometimes they can be pushed in and cause issues. I've seen that happen more than once. If it ran fine before, it's more than likely an electrical issue somewhere.

 

[atc500]

Unplug that Injector and check the pins on both the male a female sides of the plug. Sometimes they can be pushed in and cause issues. I've seen that happen more than once. If it ran fine before, it's more than likely an electrical issue somewhere.

I tried that and both plug and prongs looked fine I even tried switching #7 plug with #5 and no change still missing even swapped out the injector harness with a spare and throws the same code


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[Petro]

Well if you did all that and it's still missing on the same cylinder, that Injector probably sh!t the bed.

 

[ghohouston]

Ficm plugs fully seated?

 

[webb06]

You sure it’s not mechanical? Like a push rod popped out or a bridge isn’t fully seated?


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[atc500]

You sure it’s not mechanical? Like a push rod popped out or a bridge isn’t fully seated?


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I don’t see how they were never pulled


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[Petro]

Swap #7 Injector with #5 and see if the miss follows. That will give you a definite answer weather it's the Injector or electrical.

 

[atc500]

Just letting everyone know I pulled the #7 injector and the spool valve had a piece of plastic jammed in it looks like a piece of clip from injector but we never pulled them so not sure how it got there but she’s up and running now Thanks for the input

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