Muffler Bearing

Update to this issue, dealer has hit me for spark plugs, plug wires, and a fuel system cleaning. (and diagnosis fee of course). The codes i posted originally were apparently left over from who knows when.... and the dealer cleared them. The code that is reoccuring has been a cylinder misfire (either random misfire or cylinder #7). Once the code pops up it goes into limp mode and has all the symptoms i described above. So what i am finding out is that the real issue (i believe) is the loud ticking i was told was normal and just the way the CDI sounds. I do not believe this!!!!. I have been told by a "non-dealer" mechanic, the issue is the lifters going bad that are associated with the Active Fuel Mgt system. He tells me he is fixing these on a regular basis, and the dealers are refusing to admit the problem. Has anyone heard of the ticking bing lifter issues associated w/ the AFM system???? Tearing the top of the motor apart is not a cheap thing to be chasing........ Any help w/ the ticking/misfire/AFM system issues would be greatly appreciated!!!! Thanks, (Even Duelin)

Got the codes from a scanner I barrowed, turns out there were 4 codes. U0073 (CAN Bus Communication), U0401, U0102 (Lost communication w/ transfer case), U0140 (Lost communication with Body Control Module). They all seem to point at the same thing either a worn wire or bad plug and there is a GM bulletin concerning this and I plan to follow up w/ my local dealership. My next question to the forum is could these codes have been cleared so the dealer could not see them? Or would their scanner have showed them even if someone recently cleared them? I specifically asked if it showed any codes or transmission problems and was told NO. I bought the truck from a private seller but had a dealership local to him perform an inspection, supposedly the most thorough I could purchase….at a minimum if he should have been able to see these codes I want my money back. And YO, Duelin, thanks for helping me with my problem. A 2009 w/ 3000 miles….do you use it to pull parade floats? I don’t think that’s lightly used, I think that’s unused. You would be better off financially renting one from home depot when you need to pick up your 2 bags of groceries. I will look you up when I need help choosing a wax.

Recently bought a 2014 Silverado LT w/ 5,3L and 6-speed trans(4wd crew). Truck has 110,000 miles on it, but appears to be lightly used and truely all highway miles. I have been driving it for a week now w/ no issues but this morning on the way to work under light driving the truck jerked and the engine light and the traction control light came on. They went off about a mile down the road but truck now seems to shift hard. Is this a sign of transmission problmes? Should the dealer have been able to see this problem by reading recent codes? I was told there were no issues and the truck had just been scanned and had no codes in the record. Any ideas on the problem? Any comments on if i got screwed by the dealer? Are there issues w/ this transmission? What should i be doing to remedy or extend the life of the trans? Any thoughts would be appreciated. Thanks I have a 2007 that has shifted ereatically from day 1 and now has 180,000 miles without a failure, maybe chevys just shift this way?? ughhh.....