2001 Expedition Ignition Coil / Misfire Trouble
I have a 2001 Expedition 4.6, 112k miles. I have read the posts here about the coils issues..My truck is showing similar symptoms.Just a few questions. What exactly do the coils look like? I hear people calling them by different names..if the official name is an ignition coils, then I am pretty sure what to look for, since I have changed out many of those on my old BMW (much easier to get to and troubleshoot by the way). I searched for some prices online,and found a few different pics of them, some I were not familiar with. I just want to make sure that my truck indeed has ignition coils, and not something else I have seen/heard mentioned.
Hopefully I can have the code pulled and find out exactly which cylinder is having the issue..It is missing, and even misfiring especially when under 50mph and during acceleration. This just recently happened (again), after the problem seemed to go away for about 2 years..Would it be alright just to change the plug and the ignition coil on the problem cylinder? (I new plug shouldn't affect anything, right? I would hate to pull all 8 of the plugs but I will if needed? I will probably do it myself, but I never did any work on this truck due to the fact that most stuff is hard to get to, and I recently moved from a house to an apartment with no garage..But if i have to take somewhere, whats a reasonable price (or approx labor time) so no one tries to rip me off...?
Oh one more question, where can I find a diagram showing the cylinder numbers, or can someone just tell me?
Thanks in advance..I just recently started using this site, pretty helpful stuff!