SweetZRag

Guys,there is a tech bulletin out for this clicking sound. It is the flap in the exhaust behind the muffler. The bulletin describes how to temporarily keep it in the open position to verify. The solution is to replace the exhaust from the cat back. The dealer did mine free of charge. The flap tunes the sound in 4 cylinder mode.

Has anyone found a solution to this problem as I am having the same issue? Sounds like it is coming from the right rear area. Happens when I pull away or come to a stop but not exactly at the moment when I press accelerator pedal. It it is not U-joints. I discovered the gas tank shield is loosely hanging on the metal tabs so I bent those tabs tighter but no change. I also found some sort of flap or valve mounted inside the tailpipe just behind the muffler. It has a tension spring on the shaft outside the pipe it and if I turn it by hand, it makes a sound like what I am hearing. I suspect that is what is causing it. It looks like this flap may move when exhaust pressure changes. I think the spring is binding and making the clicking sound. Is there a tech bulletin for this. What is the valve for? Can it be lubricated? It did not happen for the first 3 months I had the truck.