Hey Guys,
This is amore common problem than anyone believes. Just access all of the "Ticks and Knocks" threads here and you will see every reason imaginable for this "Spark Knock" like noise. I personally developed this sound at around 2,000 miles. I now have 8,500 miles and still have this annoying noise.
I have pulled a 12,500 lb fiver for about 5,000 miles and added gallons of additives to my fuel in order to quiet the rattle. Nothing so far helps. Others have speculated that this is caused by bad injectors, carbon build up, need for ECM flashes, timing issues, and a myriad of other things.
I talked to a Dodge dealer diesel tech who said it could be fixed by a computer reflash. Some owners have reported that a reflash did take the noise away. However, the flash also caused their trucks to lose power and become anemic. (None of us want that. )
For now, I am trying to find a common reason for the "Spark- Knock" that most TDR membres agree on. My truck still pulls great and does not falter. I am getting about 12. 5 mpg towing at 65 mph. I would be pleased if I could eliminate this noise, but don't want to jeopardize the overall performance.
I would also be pleased if we could get common agreement that this annoying noise was not causing any additional issues down the road toward the warranty expiration. If this were true, I would simplt turn up the tunes.
Thanks, Chuck
________________________________________________________________2006 3500 Laramie QC SB 4x4 48re 4. 10 gears
2001 Cardinal 28ft two slide fiver
1969 Charger RT SE