5.4L 3V Spark Plugs Engine Build Dates before 10/09/07
10-01-2016, 09:51 PM
#932
Senior Member
Originally Posted by Jarod Barclay
How many miles u guys getting out of them and did u change coil packs too
10-26-2016, 04:08 PM
#935
Junior Member
Join Date: Oct 2016
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Could use your input
Truck had 121k on it with no service records.
6 of 8 had very little build up. Two had lots of build up.
Guess which ones broke?
One broke the electrode in half. So that one sucked. Ended up tapping it several times to break up the porcelain, then blow it out with air to get chips out. Still couldn't get tap,in their. So prayed really hard and tapped the porcelain down even more. It went down almost 1/2 past the end of the spark plug end. Breaking the strap in the end. It didn't fall into chamber so I got a miracle. But that allowed me to get the tap back in their and thread it. Once I got some threads on it, it came out easy.
Going to get a inspection camera or borrow one to make sure nothing in chamber. Plus going to try the 1/4 hose duct taped to the vacuum to suck out the fragments if any.
6 of 8 had very little build up. Two had lots of build up.
Guess which ones broke?
One broke the electrode in half. So that one sucked. Ended up tapping it several times to break up the porcelain, then blow it out with air to get chips out. Still couldn't get tap,in their. So prayed really hard and tapped the porcelain down even more. It went down almost 1/2 past the end of the spark plug end. Breaking the strap in the end. It didn't fall into chamber so I got a miracle. But that allowed me to get the tap back in their and thread it. Once I got some threads on it, it came out easy.
Going to get a inspection camera or borrow one to make sure nothing in chamber. Plus going to try the 1/4 hose duct taped to the vacuum to suck out the fragments if any.
11-07-2016, 10:32 AM
#936
Senior Member
Update: I changed mine out today. What a PITA! Removing the computer and it's mount made it much easier to get to #8. Sprayed a little PB Blaster, cracked them and then a little Gunk Carb cleaner. Let them soak for around 20 minutes and they came out in one piece. #4 and #8 had the most buildup on them, but nothing too bad.
Last edited by barriosman; 11-11-2016 at 09:46 PM.
11-14-2016, 09:52 AM
#937
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I have had to change the #4 plug twice since complete change. Seems water gets in that one and causes the plug to crack? The last time it came out pretty easily but the first time it sure had a lot of build up. Might be a good idea to keep those Lisle kits.
11-17-2016, 01:00 AM
#938
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I've watched the YouTube videos of the impact gun being used on a hot motor that all seem to be very successful, with no broken plugs. Anyone here have different results using the same method?
11-17-2016, 09:41 PM
#939
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I have heard of the head threads coming out with the plugs when going the hot motor impact gun route. I did find having a warm engine and spraying the PB blaster in the holes did seem to help get the spray to do it's job.
02-18-2017, 08:09 PM
#940
Chief Engineer
Just finished changing the spark plugs in my 04 screw at 117,000 miles. I took my time, followed the Ford maintenance instruction and used some of the advice in this thread, and all the plugs came out in one piece, squealing and crunching, and man those plugs were in tight. Hooyah! Really appreciate all the advice available on this sight. Without it this job could have easily gone sideways, so thank you all. This forum is a great resource.
