total cost tune up

Any one know the total cost of a tune up for a 2002 expo 4.6 liter? Spark plugs, and I heard of some thing that connects the spark plug to the coil sitting up top it that needs to be replaced also when ever you change the plugs... And how difficult is it to do and what other items need to be replaced for a tune up??? Please advise...

Call the dealer and ask them. Find out how much is labor and how much is parts. Find out exactly what they check and what they replace.
Then call other shops and compare service with price.

did the tuneup thing for my 100k, to have all 8 plugs changed, labour and parts ran 250$$ at the dealer
hth
Rick, Ore