Mine is knocking again. At about 7500 miles started rough idle, tick, then knock and finally white smoke on cold startup. Had #6 injector diagnosed as leaking and replaced. White smoke went away, rough idle got better, but not like first 7500 miles. Now it definitely has a knock at idle and up to 1500-2000 rpms that I hear. Truck is running good, but I know that something is not quite right.

Dont know what to do, I know something is gonna happen, just dont know when.

I think I still have a bad injector or damage from the first bad injector. Nothing shows up in any testing. I think I will put on the Juice/Attitude sitting here on my desk and see what I can either make happen or just get use to the knock.

Very frustrating.

 

I'm kind of in the same boat as RamWheelsby4, I have gone in 4 times for the injector problem, and they have changed out at least 3 of them but the knock / tick continues to come back. I have always had the blue/white smoke and rough idle on startup..that really never got fixed even after the flash and injector flush. I really don't know what to do at this point....this is getting old in a hurry.