60thAnniversary

Have a 2008 f150 with a 5.4 FFV with 106,000 miles on it should I do the tune up now and what all needs to be replaced.

jhunt47

You have the new style plugs so shouldn't be too bad. What worked best for me was a 1/4 ratchet with 6in ext with 7mm wobble socket for the coils. For the plugs 3/8 ratchet with 9in ext with wobble spark plug socket. Might want some long needle nose if a boot stays in the hole. Some sort of compressed air to blow out the holes before you remove the plugs. I always install ford plugs no aftermarket and would recommend replacing the boots that's your call. I would also do air and fuel filter at the same time ford parts for these as well. Unhook your battery while performing to reset your computer. This will help get the best results with the new parts. Hope that helps.

Rusty Luck

Did you ever do that tune up?

ymeski56

Moved to 04'-08' Section.

60thAnniversary

Yes now have 126k miles on the truck and still running strong. But looking to get a programmer for gas milage improvements.