I just did this tune-up today. I am not a mechanic, but mechanically inclined... LOL! It took my son and I about two hours. Local Ford dealers wanted $325 - $400. I got it done for under a hundred. Would have been $70 less, but I had to replace one of the coils. The epoxy was cracked and letting moisture in it. Replaced PCV valve as well. Wish I would have found these pictures first.