They are hard to get out at any mileage - on my SOHC the pass firewall one
was impossible. I ended up at the dealer for this one as they had the right
tools and the price wasn't bad in a "tune-up package". I'd stick with the
owners manual recommended and leave them for now...

Signature
Allan Williams
> At what mileage should spark plugs be changed on a 2003 Mountaineer V8?
> Currently I am at 70K miles and I seem to recall that someone said they
> are hard to remove at the recommended 100,000 miles. Outta I do this now
> or just wait?
C. E. White - 05 Feb 2008 16:36 GMT
> They are hard to get out at any mileage - on my SOHC the pass
> firewall one was impossible. I ended up at the dealer for this one
> as they had the right tools and the price wasn't bad in a "tune-up
> package". I'd stick with the owners manual recommended and leave
> them for now...
I changed the plugs on a SOHC V-6 last summer - not too bad once I
remove the right front tire and went at it through the wheel well (as
the manual recommended).
If he has a 4.6L V-8, well that is a different animal. I'd definitely
find a good shop and pay them to do that one.
Ed