spark plug breaking up and falling into cylinder
#4
How many miles on the plugs? I think ford recommends you change the plugs at 100k. If you actually have more than 50k on them I strongly recommend taking you truck into the dealer. My neighbor tried to do the plugs on his 10' f-150 with the 5.4 and all but one broke off the extended insulator and he had to have it towed in for the job anyway.
Thread
Thread Starter
Forum
Replies
Last Post
t_money662
1997-2006 Expedition & Navigator
2
06-26-2006 07:08 PM
robertthompsonjr
Modular V8 (4.6L, 5.4L)
5
09-12-2004 08:17 PM