Hi, Well it's been three weeks since the kid blew his engine (2004 tib 2.7) Picked up a 2.7 engine from a 2006 at the bone yard. (20k on it) Got it running but it runs real rough, like the gas mixture's not right. So my question to you is.... Is the 2004-2.7 the same engine as in the 2006,or did they change something in the fuel lines??? TIA Ron