Running rough?

[ThreeFitty]

Was sitting at work the other day for a while in my nice warm truck just idling in the parking lot as I had gotten there early and was on the phone. Sat there for about 10 minutes. When I went inside a man told me he thought my truck was "running way rough and i think you dropped a cylinder" I just said ok and walked away but it got me wondering. What do you guys think? Only smoke I ever see is when it's a cold start or sometime when I use my led reverse lights I can see a haze but nothing in the daylight and the smoke clears up within 10 seconds after a cold start. Thanks for any opinionshttps://vimeo.com/115275624

 

[mandkole]

From the vid, it sounds a little 'chunky' , but comparing to vids with dead holes, its not that-- if its got original injectors with high miles, it could be there.

The blowby rule of thumb is not reliable enough, so when you get ready to do injectors, do a compression test first.

 

[ThreeFitty]

From the vid, it sounds a little 'chunky' , but comparing to vids with dead holes, its not that-- if its got original injectors with high miles, it could be there.

The blowby rule of thumb is not reliable enough, so when you get ready to do injectors, do a compression test first.

10-4, thanks for the input. Im far from an expert when it comes to this. And it got 2 brand new injectors right before I bought it (Have receipts from local dealer as well as confirmed it with dealer), truck has 182k on it so I can only guess the others are that old... Was planning on putting in a fresh set some spring time

 

[ju015dd]

compression test, sounds like every other 7.3 out there though.

 

[ThreeFitty]

compression test, sounds like every other 7.3 out there though.

Yeah I thought it sounded fine as well, but none of my friends have 7.3's so I never really had anything to compare it to. And im planning on a compression test come spring as well as the injectors

 

[DocBar]

Sounds like mine. Maybe Golfer will check and use those magic ears of his.

 

[lincolnlocker]

Yeah I thought it sounded fine as well, but none of my friends have 7.3's so I never really had anything to compare it to. And im planning on a compression test come spring as well as the injectors

blow by looks to be ok as its not puff puff puff but a steady stream of vapor. plug the ccv on the other side and see what happens to the oil cap.

live life full throttle

 

[Blowby]

Old injectors will behave much differently than the new ones installed. This can effect the peak pressure point in your arc and allow a slightly different timing between the old and the new. This isn't a problem but it's like having two of your cylinders firing at a different time than the rest. If this just started happening then you need to think of what has changed to pronounce this slight mismatch. Which cylinders have the new injectors?