Re: buying a rv soon
Hi Denny and welcome to the RVUSA Forum. From what I read on the web, Ford V10's built from 1999 to 2004 had the problem with spitting out spark plugs. The engine design allowed only 4 threads on the spark plug to engage the cylinder head. You can Google "Ford V10 Sparkplug Problems" and read the articles there.
On a good news note, the spark plugs should be good for 100,000 miles before needing replacement. Some of what I read said the blown sparkplug problem showed up after the OEM plugs were replaced. So, with any luck, you should be able to get some good service out of your RV.
I have the same engine in my 2007 motorhome and the only problem I have had was with the sparkplug ignition coils.
Post back if you have any more questions and we'll see if we can help