September 26, 2011Hi. I have a 2011 6.7 and did all deletes with H&S Minimaxx the first week in August. I have put about 1,800 miles on the truck with the deletes and cant seem to get rid of this Pinging Noise (Timing Rattle?). It does it mostly when cold and taking off first thing and shifting through gears at lower RPMs, but it does do it when warm too, but much quieter. I updated to the .24 tune from the .23 that I had installed and had noticed no difference. I have only heard of a few others who had this problem and wondered if there was a solution. H&S said they have never heard of anyone with this problem. Some people have told me the noise is elevated because of all the deletes I did which muffled a lot of the sound. To me it does not sound right and am afraid of doing damage later on. Other than this the truck runs PERFECT, no smoke, rough idle, etc.
Here is a crappy video I made today and you can really hear it at .15 sec in third and .21 sec going into fourth gear.
What do you think, is this normal or do I have a problem? I really hate to take all the emission junk and put it back on.