Forum Discussion
carringb
Mar 30, 2020Explorer
The V10 is a VERY reliable motor, and the Excursion only got the PI heads so it'll have 8 threads for the spark plugs, although they didn't completely fix the root-cause tooling issue until '03. But still, it's rare. Bigger issues at 20 years: Probably needs radiator and heater hoses done, and plan on replacing all the COPs when he plugs are done next.
The 4R100 behind the 7.3L is nearly disposable, but because of the far different programming (it locks up in every gear behind the V10), it holds up MUCH better behind the V10 as long as it has the trans cooler loop in the radiator (ford deleted it on some '01s) or a Tru-Cool max installed. Best is having both.
I'm still on my original 4R100, just passed 478,000 miles last night. Over 300,000 of those are towing miles, typical weight is 22,000 combined.
That all said... The Excursion is nearly as payload-challenged as an Expedition, due to its soft spring rates. And because of this, it handling is a little sloppy, and gets worse when you load it up. If you want to tow heavy with it, you'll want to swap-in F250 or 350 springs and put on some good shocks.
The 4R100 behind the 7.3L is nearly disposable, but because of the far different programming (it locks up in every gear behind the V10), it holds up MUCH better behind the V10 as long as it has the trans cooler loop in the radiator (ford deleted it on some '01s) or a Tru-Cool max installed. Best is having both.
I'm still on my original 4R100, just passed 478,000 miles last night. Over 300,000 of those are towing miles, typical weight is 22,000 combined.
That all said... The Excursion is nearly as payload-challenged as an Expedition, due to its soft spring rates. And because of this, it handling is a little sloppy, and gets worse when you load it up. If you want to tow heavy with it, you'll want to swap-in F250 or 350 springs and put on some good shocks.
About Travel Trailer Group
44,055 PostsLatest Activity: Dec 23, 2025