fuel knock

[Poglife]

I have what I believe to be a fuel knock on cylinder 8. it follows rpms. supposably the truck got new injectors before I got it. the truck only has 175k on it. whats your thoughts? replace one injector. replace all of them? keep driving it.
can I see the injector causing the problem if I get an ids?

 

[79jasper]

Run some test before throwing money at it.

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[Justin@DP-Tuner]

Is there a definite miss? I would get a scan tool on there to see if you have any codes associated with it and run a contribution test.

 

[Poglife]

I wouldn't say definite miss. but there is a knock. no codes with my cts. but ill get a contribution test done this weekend.

 

[outlawpowerstroke]

Remove the vc and start the truck then unplug number 8 if it is that then you have a good starting point if it still knocks then you may have bigger problems


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