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Kozal01, Thank you very much for the How-To. I studied it for weeks, and was successful like you in not breaking a single plug. Just takes some patience while you inch 'em out; one squeak at a time. I didn't use a pneumatic impact, just a trusty 3/8" ratchet. I was afraid I broke CYL's 4 and 8 when I broke them loose for the PB/Carb Cleaner, but they came out without any extra help. I am definitely looking forward to better MPG's, because the electrodes on the old plugs were next to non-existent. Needless to say, I had your post printed out right next to my Haynes Manual.
All plugs out in about an hour.
Plug from #4 Cylinder on left. This is what an electrode looks like at 101000 miles.
Quick question...hope someone can shed some light on this thread...
Going to replace plugs and ign coils on my 05 f150 5.4. Has 162k miles and plugs were changed in 2009 or 2010 (cannot remember and don't have the service bill handy) right at about 100k. Ford dealer. So current plugs only have the 62k on them.
I thought I heard ford/motorcraft abandoned the 3 piece plug back in 08 for the 1 piece plug....if I had them done at the dealership around the time mentioned...I would assume they used the new 1 piece design. So if I am going to swap them out, should I worry about any breaking? Wondering if I need to get the lisle tool?
When I checked the plugs for my '08 at the ford dealer they were one piece.
If you have brown coil boots, that is a completely different design starting in 2008 and is indeed a one piece plug. All 3v 5.4L prior to 2008 use a 2 piece plug, whether the original or as redesigned by Ford.
I did this for the first time today, with 140,000km on the truck (2004). Took 2 hours start to finish, could probably do it much faster next time. I ran two bottles of Redline SI-1 fuel system cleaner through the tank before attempting this job. All plugs came out no problem! I bought the special spark plug socket/extension for this engine and was very happy with it. Only needed a 3/8 impact swivel for the two back plugs w/ the impact, and a 2" extension to fit the impact driver. I did the first few with a pneumatic impact, then switched to an 18V cordless Makita impact driver that worked just as well and was an easier fit. Thanks for the guide and tips, saved me several hundred dollars easy.
Did this spark plug job over the weekend. I read this forum over probably 10 times before attempting. My truck is an 05 at 145000 miles and hasn't had the spark plugs changed since 35,000 miles, so they were past overdue. I started experiencing jerking on the highway and initially thought it was the transmission, until a Google search brought up the spark plug issue. Anyway, I decided to let my plugs soak for a good while before I attempted to bring them out all the way. Followed the steps described in this thread, but used Sea Foam Deep Creep to do the soaking. I let them sit overnight. I had debated on the method I wanted to use to take the plugs out, but eventually decided on the impact wrench method. I started on the front passenger plug and the wrench zipped it right out. You could tell the Deep Creep did it's job. Actually ended up getting all the passenger side plugs out without breaking any. At this point I thought this was going to be an easy job. Got to the back plug on the drivers side and it broke. Used the Lisle tool and it worked like a charm. Broke 3 of the 4 on the drivers side, but the Lisle tool got those 3 out with no issues. Overall it was not too bad of a job, especially with as many miles as were on the plugs. Replaced the old ones with Motorcrafts and the truck is running great.
01-27-2015, 05:28 PM
