blown spark plug
This problem, and my recurring leaking exhaust manifolds have me seriously doubting a Ford truck again, and this is my 6th.
If you heare a ticking sound like an out of ajustment valve chances are a plug is loose and about to blow out. This ticking sound began about three weeks before the plug actually blew out. Ford has a TSB out on this issue TSB-05-22-08
Bolts for the COP's are set at 5-7Nm or 44-62 in/lbs. Good idea to use any sort of anti-seize here too!
Draw them up slowly.
And I seem to be having trouble finding other "repair/not replace" options. any help would be great.
thanks,
James
Ford Trucks for Ford Truck Enthusiasts
I bought a new plug and COP to replace the ones that were trashed when they were blown out. I swapped the number one cylinder plug and COP into the number two cylinder because I fully expect it to be ejected again and didn't want to waste the new parts like that. When I checked the plug I did not see ANY sign of aluminum shavings on the threads or anything that would indicate it stripped out the threads, so I started thinking maybe it was just loose and finally popped. So I tried installing the number one plug in the number two hole. At first it kept binding at half a turn which I know indicates crossthreading. I took some time and made many more attempts and finally felt that it was not crossthreading. I still think the threads might be damaged or partially missing so I didn't really torque it in very hard, I was worried that if they are partially damaged I could fully strip them out by overtorqueing them. So I put the new stuff in cylinder one and left cylinder two with the plug "installed" but no cap or plug boot. Fired the engine up and it ran fine except for the miss of not having the number two cylinder firing. Then I installed the COP and plugged everything in, fired it up again and no problem. I drove it from my garage to my parking space and no problem. I think one of two things here, either I was lucky and managed to muscle through a partially damaged first thread (possibly from the plug being ejected) and everything will be fine, or (and I believe most likely) once I get on the road and put the engine under some load and it warms up it's going to spit the plug again and destroy the COP. Either way I think once I have a little more money I will probably yank the head and install the Timeserts. Has anyone been able to reinstall a plug into a blown plug hole? How did it end up? Did it spit it back out, is it still kicking? I'm looking for some input, and fully expecting tomorrow's drive to work to tell me I have a MAJOR repair coming my way. Thanks in advance to anyone who can offer their experience.
Well I made it to and from work today without the plug blowing out again. I did not at any time get into the throttle past grandma driving so it's still quite possible that it is weakly threaded. This weekend if I make it that long without blowing the plug I will put the truck under some solid load and see if the plug holds. If it does I will check the plug again and see if it is as tight as I can get it by hand without a ratchet. I think I will also replace the rest of my plugs because the number one plug that I moved to number two was completely black with carbon and soot so the rest of them are probably ready for a change. Except for that number two plug, I have no intention of ever removing that plug on purpose, at least until I have the Timesert kit. Anyone know how much that kit runs for an '01 F250 with the 5.4?
Update:
It spit the number two plug on the way to work this morning as I suspected it would. I dropped it off at the shop after work and they have the Snap-On version of Fords anodized aluminum insert kit. The Ford dealer wanted $350 to do it (a much better price than I was expecting), the kit itself was $200, and the shop will do it for $150. I know the owner of the shop and he will do it right, but he will also not hesitate to charge me for it so I'm fully expecting that $150 to balloon somewhere closer to $250. I was torn between just buying the kit and doing it myself because then I could address the issue as it continues to arise, but I also wanted my truck back right away and it would take some time to have the kit shipped and I work during the week. I will update tomorrow when I get back from work with how the repairs went, and the bill. Turns out using the old coil and plug from the number one cylinder was a good decision.
Picked up the truck after work, the repairs appear to have been a success. The iinserts work like the timeserts, they have the lip on the top to positively seat and the cold rolled threads on the bottom to positively lock into the combustion chamber side when threaded through. As I suspected the bill ballooned, total bill was $235. Time will tell if the repairs were good, but with this style of insert I don't anticipate the plug blowing out again. My only concern is keeping an ear open for the sound of another plug working it's way out. Three out of eight plugs and coils in this motor are now less than two weeks old, and I'm considering changing the rest of them at this point.
Your bad luck suggests it might be time inspect the not-yet-failed plug holes to see if they too have been damaged. If so having them done all at the same time would be time saved later on---perhaps your shop would give a package deal? That $235 is a VERY fair price even if they don't discount on volume!






