I have a 2LT with 6M and I get the noise during deceleration just as I come to a stop; gradual acceleration as well.
Took it to dealer and the service manager for a ride and replicated the sound. They checked it out and could not find anything "wrong". They supplied me a bulletin that said the LLT motor has a clicking due to the high pressure fuel pump and injectors.
FWIW it doesn't sound like the clicking is coming from the engine; sounds like it's the trans. I'll keep an eye (ear) on it.
1968 Camaro convertible, soon to be LS1 & T56, Magnaflows, 3.42 posi, 17" Torque Thrusts
2011 2SS/RS, LS3, M6, IOM in and out, factory Hurst short throw, GMPP axleback exhaust
Last edited by ckaram; 09-03-2009 at 04:54 AM.