Spark plugs

[parkerdoug383]

Just bought an 08 with 145000 miles on it can anyone tell me what years were the spark plugs issues

 

[sjwelds]

Black or brown boots on the coils?

Black=trouble

Brown=no trouble

08 was the break year on the spark plugs issue.

 

[Adieu]

Also if they've been changed before, probably no trouble

 

[762mm]

Watch this for some good info, if you end up having the old type :

 

[JExpedition07]

As adieu said depends if they’ve been changed before. If it’s the original style and they’ve been done they are likely the updated 2 piece plugs that don’t break. If it’s a later 08 it has regular plugs that don’t break either.

For the record I have owned (2) 2007 Expeditions with the 2-piece plugs and black boots. I had no breakage on the old plugs on either truck because they were replaced with the updated ones.

 

[Trainmaster]

The two part plugs were used on engines dated before 10/9/07. The date label is on the driver's side valve cover.

 

[Jst ROM]

To the OP:

I have a 2008 Expd Limited with 207K+ miles on it, the ignition coils are black and the OEM spark plugs are: Motorcraft SP-509 (HJFS-24FP SP509 HJFS24P). I highly suggest a automotive mechanic in servicing this job maybe not a Ford dealership mechanic because it'll cost a fortune plus a rental car. My mechanic started at 8AM and it was done by 3PM what takes so long is wishing your spark plugs don't snap when they are being taken out, they spray penetrating oil in the spark plug port and let them soak for over 1-3hrs even more depending on difficulty in removing. Good luck and pray the plugs don't snap in removal.

 

[762mm]

^ if they snap, there's a special extraction tool made by Lisle to get them out. There are a few videos on YouTube on how to do it, including some tips on preventing the snapping. Check out vids by "Ford Tech Makuloco" on the topic, he's the 5.4L Triton guru on YT...