John Christopher
Full Access Members
Oh the good old days. Back when we had a 99', I changed the plugs when we reached 120K and that was a pain! Can't recall which plug it was, but I recall one, but in order to get one of the ones at the back of the engine out required a really long extension for the socket wrench, and threading in the new one in without stripping threads required removing the wheel just to get my arm in there. Ah, good times.
I would replace the coils that are very difficult to get to. I have a 03 Expy 5.4 and the back plugs are buried. It would be worth the price. Also coils can be purchased on line at a lot less than 80 a piece.