I have a 04 F150 with a 5.4L, went down to the auto parts store to buy plugs for my truck and they told me I needed 16, 2 per cylinder, then i called the local dealership and they said the same thing, I have not yet had the chance to pull a coil off to see if there are two plugs under the coil. I was only aware of 1 per cylinder, but I have hear that the Dodge Hemi has two per cylinder so maybe the 5.4 Triton does. Anybody know? Thanks

 

no their is only 8 plugs on the 5.4...in fact i don't think ford ever made a engine that take 2 plug per cyl

 

Huh? The dealer told you there are two plugs per cylinder? Negative. It's a V-8, it has one badly designed plug per cylinder. Make sure you buy the one piece plug from Champion when you replace them.

Man, you know we're in a recession when a dealer tries to screw you on spark plugs.

 

Ford did make a 2 plug per cylinder Ranger. My dad had one...I believe it was a Mazda engine.....4 banger. If your dealer tells you an F150 takes 2 per cylinder I would be very wary of them!

 

Yeah its only one 1 spark plug per cylinder yes the Dodge Hemi takes 2 spark plugs per cyl but thats Dodge and I didnt even know that for the longest time

 

Raat73 go buy a Haynes or Chilton Manual for your truck. Then go and find a good shop. Stay away from that dealer. You are out of warranty so there is little reason to use someplace that told you that you needed 16 plugs for a Ford 5.4L. And the next time you may want to have someone else wait on you at that parts store.

 

Thanks guys, you confirmed what i thought.

 

The 1998 Ford Ranger had a 2.5 (GUTLESS sumbiatch) that had 2 plugs per. I think that was the first experiment into the COP design, though I'm probably wrong.

I hated that trucklet.

 

well at least ford was smart enought not to try it again for are sake