One problem related to engine noise has been reported for the 2005 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Expedition based on all problems reported for the 2005 Expedition.
2005 Expedition has severe engine ticking problem (sounds like a diesel) original complaint was before warranty expired told by dealer that it was the "3 valve motor noise". When it got worse at around 37k miles (1k) out of warranty dealer then tells me that there has been a TSB issued (TSB 06-4-7 original version was actually issued shortly after the truck was built) it is the cam phasers and valve lash adjusters and it will be $3000 to repair and now not covered under warranty. I have repeatedly worked with the dealer and Ford customer care to resolve issue the last person at customer care told me "its your problem" just before hanging up on me. This after a similar pulling teeth episode to get them to fix the known corrosion problem that they had and denied before I found a TSB about that too, I now have another large rust spot on my back door that the will not fix either. All of this after I paid $4000 to get rid of the Lincoln LS that I owned that they could not keep running after dumping thousands of dollars into a cop problem that was eventually covered under a customer care program. I sure did not get any money back on that. Someone has to wake someone over at Ford up and get them to fix this garbage they have been turning out. .