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This will be 2nd time this cylinder is having to replace the coil. I pulled it out and I question the image. Should it look like this? Changed it maybe 20k miles ago, and thats being very generous, maybe much less actually. But still, is the boot supposed to have all that residue? Or is this close to normal? Also, I'm no expert, def not a mechanic, not even a knowledgeable person when it comes to auto mechanics, but to me that looks like burnt oil residue somehow. Loose spark plug maybe?
And while I'm at it, there's a tapping/ticking sound coming from bay 2 like either cyl 6 or 7 as if a lifter is hitting something. Thats me thinking I'm educationally guessing with what I think I know. I've also heard its quite common. And to top it off, another guy said he's had success with finding a somewhat loose spark plug that turned out to be the culprit of his engine sound. Just some info exchange. Anyone have any useful thoughts or suggestions?
Were any DTC's triggered directed towards that COP as installed? When it was last changed what caused that action? Was the boot also changed or how old is it, mileage and/or years?
The spark plug is loose. You should replace it and the coil. Use quality parts, no duralast crap. When the plug is loose the combustion gases act like a blow torch and burn up the ground strap on the plug. Its a good idea to check the other 7 plugs to make sure they are tight. The tapping noise could be a loose plug, exhaust manifold leak, or failed roller rocker. Don't ignore it! Failed roller rockers leads to dropped valves and destroyed engines.
The spark plug is loose. You should replace it and the coil. Use quality parts, no duralast crap. When the plug is loose the combustion gases act like a blow torch and burn up the ground strap on the plug. Its a good idea to check the other 7 plugs to make sure they are tight. The tapping noise could be a loose plug, exhaust manifold leak, or failed roller rocker. Don't ignore it! Failed roller rockers leads to dropped valves and destroyed engines.
A loose spark plug also means that it most likely has also failed, but if it won't torque tight to its specs the threads in the head are most likely damaged. That is a whole conniption fit of costs.
A loose spark plug will make noise when the motor is running. It's also caused thread damage just by thousands of thousands of rocking around the clock to the Rpm beat of your motor.
A sparkplug can also lose its own seal with its metal parts, cause burning damage because it's broken off of its metal self, sure they usually blow out but not always. This commonly
happens by using a poor-quality Spark plug socket.
The spark plug is loose. You should replace it and the coil. Use quality parts, no duralast crap. When the plug is loose the combustion gases act like a blow torch and burn up the ground strap on the plug. Its a good idea to check the other 7 plugs to make sure they are tight. The tapping noise could be a loose plug, exhaust manifold leak, or failed roller rocker. Don't ignore it! Failed roller rockers leads to dropped valves and destroyed engines.
you were correct sir. I went to check the spark plug before I change the coil, and when I put the socket on the spark plug there was no resistance even tho I knew it was on, so I tightened it and sure enough it was loose. Pulled it out replaced with Motorcraft plug and a new coil, and now its purring like a kitten. Also a long time tapping sound is now gone too. Backstory is I bought truck used, 2 months in I stepped on gas to see what it had, and then it started tapping ever since like a lifter was hitting. But now its gone, must've been the plug. And check this photo .... as for the electrode and pin, someone suggested disintegrated or blown out the exhaust., I've driven plenty miles by now.
Also, that was a replacement coil, and the mechanic that put it on didnt even check or notice the spark plug bc it was tapping before going there, so it was already loose apparently.
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