its suppose to be clean. Something is going on with your dpf. Have you had any cel or any of the problems people are experiencing with the dpf. If you haven't had any problems other than the sooty pipe ,do you do allot of highway driving. I was wondering this because your dpf being defective or cracked could be duplicated if it helps. lol
Mostly city driving with the occaisional highway trip. No DPF problems yet, but just threw the p2000 code a couple days ago. My tailpipe has been that color since about 5k or so. Of course I often turn it off while it's trying to regen...exhaust popping and cracking from the heat. I'll be taking it in for the p2000 on Wednesday, so I'll have them check the whole thing out, get it updated to the latest AX flash with the OHC update, etc.
Mine is pitch black on the inside of the tailpipe, and will puff some pretty good smoke when shifting, especially when pulling my equipment. I think that the warranty is for 50k so about 48k it is going in to have a look at, it is still runnin and no codes so I figure go with it. Hopefully by the time I get to that point I will have a dpf delete off road kit and run it instead.
Mine is just short of 10,000 and I have a little rust or tarnish on the tip of the pipe...not soot. I have mostly highway miles. I'm a little confused as to the regen process. I've never seen a message, heard the "ding" or experienced elevated rpm's unless my foot is in it.
I had two P2000 codes...dude looked up a TSB, cleaned my O2 sensors, reflashed the PCM (even though I already had AX) and installed some kind of kit....not sure what that is, but I had G 30 done in January. They said that was the cause of the dirty tailpipe.
Also, on another note, those of you who reported a loud metallic screech off the front right of the engine about 30 sec after start up should get your A/C lines checked. I was low on refrigerant and had a cracked line. Apparently a new drier is required as well as a new AC line, but the line is backordered nationally. There was a seperate post about this somewhere else, but I can't find it now.
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