My little F150 with a 5.4 has 187,000 miles and I have no service records from former owner who put on about 25,000 miles. I bought it with 186,000 miles
It runs and drives and stops like it has 100,00 FEWER miles on it. Body and interior are very good ---except that driver seat is a bit worn and needs attention.
I can't find what I'm looking for in the owners manual.
Thanks for your input and opinions

 

I've seen them with over 400 k doing fine. Not a normal maintenance item.

 

Wow! I think I will stop worrying about it. Thank you JWC 3
PS...I was expecting the worst, and I'm not disappointed!

 

OK FTZ HAIC, would I need to change the tensioner? So far it has acted like a good condition runner, Has not used a qt of oil since I changed it in December.
If it weren't for that "connection and corrosion problem" I had earlier, I wouldn't know what it looked like under the hood. (not exactly correct)

 

to the OP , We have very similar mileage trucks....I am more in favor of replacing critical components like timing chain and tensioners before they become issues & cause more damage. I have not done mine....yet, but I would like to get it done. When I do pull that trigger, I will replace the oil pump as well