Maybe I'm getting cynical with age, but ....

my wifes expedition had a miss and 6 months later check engine light on bad coil pack my mechanic C/O and we pick it up i drive it 3 days and miss is back on way to his shop check engine light another coil pack by the time we were done we changed 4 coil packs and 8 plugs and total cost 480.00. she thought that was high and i told her the coils are 50.00 ea. and that three of the ones we replaced have 230000 miles on them so 4 coils in 230000 on a 1997 car not bad