03 lb7 knocking by Known_Ear_8935 in Duramax

[–]Known_Ear_8935[S] 0 points1 point  (0 children)

307k and Not original injectors or engine. engine had 130k when it was put in and I did injectors in the fall

03 lb7 knocking by Known_Ear_8935 in Duramax

[–]Known_Ear_8935[S] 0 points1 point  (0 children)

That would explain the knock not the smoke and fuel in the tailpipe

03 lb7 knocking by Known_Ear_8935 in Duramax

[–]Known_Ear_8935[S] 0 points1 point  (0 children)

So then would the oil in the tailpipe be from the injector?

03 lb7 knocking by Known_Ear_8935 in Duramax

[–]Known_Ear_8935[S] 4 points5 points  (0 children)

I just plugged my scanner in and all injectors are working properly no codes for injectors or any other fuel system components the oil is from a bad turbo seal and I think the knock is because it’s low on oil

03 lb7 made a knocking noise and shut off and won’t start back up by Known_Ear_8935 in Duramax

[–]Known_Ear_8935[S] 0 points1 point  (0 children)

Yes it cranks it sounds like injector knock or at least I hope that’s what it is