Ford Expedition 03 xlt

[kbat]

Have a Ford Expedition 2003 xlt 5.4 L, I'm changing the spark plugs this week, I bought Motorcraft SP479 Platinum Iridium Spark Plugs, should I change the boots as well? Thanks

 

[ZombieSoldier]

i would definitely recommend you replace coil on plugs as well...

 

[GEORGETOWN]

I have the same one and recently changed the plugs and I suggest dont try to go cheap on the coils!
I did and turned out the coils were bad and now I am waiting for my refund.
Put the old ones back on and seems to be working good
:::::Fingers crossed::::::: lol