Broken Spark plugs
05-09-2015, 10:10 PM
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Broken Spark plugs
I have a 2006 f150 xlt, and recently had a random misfire code pop up...So I figured it was time to change the plugs and coils. Rented a spark plug remover just in case they broke. I took the coils off and cracked each plug a 1/4 turn and sprayed some penetrating oil in each one like I've heard is the best way to get them out without breaking. But they didnt break like they usually do, the whole plug stayed in and all I got out was the nut. So using the kit was pretty useless, unless I go in and purposely break them off( which I might have to do) Was wondering if anyone else had this happen and what they did or any suggestions? I got 2 of the 8 out successfully and had to tighten back down each of those nuts on the plug and re install the coils just so I could drive my truck, and now its running ****tier then before. Any help is appreciated! Thanks!
05-10-2015, 10:30 AM
#2
LightningRod
Ouch!
Oh my god, you did WHAT? 
QUOTE: "...had to tighten back down each of those nuts on the plug and re install the coils..." END QUOTE
All bets are off, and I imagine it would be running "****tier than before". Surely the ceramic is fractured in those plugs allowing the spark to arc over on those plugs. I'm almost surprised it even runs. Hope you didn't torque those nuts back down too hard. If so, it may make it even harder to get them out with the lisle tool.
When the nut/threads is all that comes out, you have to use a large screw driver or some similar tool and break the ceramic top off on those plugs and fish the top part out. Then use the lisle tool.
If the plugs are seized that hard, I would recommend cleaning the carbon out of the sparkplug holes before putting in new plugs. Some additional thoughts I have on this problem is here: https://www.f150forum.com/f4/5-4l-3v...6/#post3930018
Some additional reasoning behind this theory is here: https://www.f150forum.com/f4/5-4l-3v...6/#post3932639
If you decide to do this, be careful. With all plugs out, it would be easy to turn the engine over to position each cylinder at TDC before burnishing the carbon out it with the brush. That would avoid the problem detailed in this post - http://www.ford-trucks.com/forums/13...lp-piease.html
Good luck
QUOTE: "...had to tighten back down each of those nuts on the plug and re install the coils..." END QUOTE All bets are off, and I imagine it would be running "****tier than before". Surely the ceramic is fractured in those plugs allowing the spark to arc over on those plugs. I'm almost surprised it even runs. Hope you didn't torque those nuts back down too hard. If so, it may make it even harder to get them out with the lisle tool.
When the nut/threads is all that comes out, you have to use a large screw driver or some similar tool and break the ceramic top off on those plugs and fish the top part out. Then use the lisle tool.
If the plugs are seized that hard, I would recommend cleaning the carbon out of the sparkplug holes before putting in new plugs. Some additional thoughts I have on this problem is here: https://www.f150forum.com/f4/5-4l-3v...6/#post3930018
Some additional reasoning behind this theory is here: https://www.f150forum.com/f4/5-4l-3v...6/#post3932639
If you decide to do this, be careful. With all plugs out, it would be easy to turn the engine over to position each cylinder at TDC before burnishing the carbon out it with the brush. That would avoid the problem detailed in this post - http://www.ford-trucks.com/forums/13...lp-piease.html
Good luck
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