Coil pack

[Jenn]

Ok so i have a question. Do you have to screw a coil pack down.

 

[Bedrck47]

Welcome to the Forum I would think that there is a reason for having a mounting screw

 

[Jenn]

Ok but someone put some coil packs in my truck but didnt screw them down does it matter if they are screwed down

 

[Bedrck47]

They should be screwed down that way they wont vibrate loose Even though they are normally a tight fit
Also if you are missing any hold-down screws check to make sure that they weren't broken off when whoever removed them.

 

[aircargoo]

of coarse....sand metal on mount so it grounds real good....i did it to both of mine.

 

[Mike White]

of coarse....sand metal on mount so it grounds real good....i did it to both of mine.

I'm not sure what year this Expedition is, but I can speak for the 1st gen. Sanding is not needed as the body of the coil pack does not rely on its mounting surface to function (i.e. the mouting screw does not ground the coil).

I recommend cleaning since it's out just as a form of house keeping, but be mindful of dropping debris into your plug hole.