Originally Posted by CarTrouble1
I've been having trouble with 06 Expedition for a few months. At first I had sputtering and occasional banging. I had diagnostics run and got "misfire on 3" and "trottle acctuator control system". The throttle body has since been cleaned and the third spak plug and coil were replaced. Since I'm having even more trouble. I'm finding it difficult driving up slight inclines, even on the highway. I begin losing speed and end up at a complete stop. Any ideas?
Really sounds like your Electronic throttle body is failing, anytime we have one in with a TAC code they usually get a new ETB since it is failing internally.