Another Plug blowout
New User
Joined: Oct 2002
Posts: 7
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From: toronto canada
Another Plug blowout
Just came back from the Ford dealer said my spark plug had a blowout last one on passenger side. Told me they have never seen this before and must be the plugs where put it wrong. Funny they changed them about 40k ago. Came home, searched and found lots of posts about the same problem. I have a 1999 Ford SD/250 with 5.4l with 128,000 kms and out of warranty!
Is Ford going to ignore this problem ??????
WHO IS GOING AFTER FORD ??????
I want to Join or start the movement.
Regards
Abarth80
Is Ford going to ignore this problem ??????
WHO IS GOING AFTER FORD ??????
I want to Join or start the movement.
Regards
Abarth80
New User
Joined: Oct 2002
Posts: 3
Likes: 0
Another Plug blowout
Hello all,
When Ford told you the plug had "blown out" what did they mean? Was the plug blown right outta the block? was it just leaking combustion gases past the ceramic? I am thinking it is the last one. If it is just the ceramic leaking, then it is very common. The cause is over-torqueing the plug. That will distort the metal base of the plug, cracking the seal between that and the ceramic allowing leakage. It will burn the spark plug boot and discolor the white ceramic of the plug.
Always torque the plugs to spec or make sure the service dude does. Too little torque and heat transfer suffers and you can overheat the plug causeing detonation, too much torque and they crack and leak. Not sure what the torque is sposed to be, but most plugs call for around 35 ft/lb.
Goodluck
When Ford told you the plug had "blown out" what did they mean? Was the plug blown right outta the block? was it just leaking combustion gases past the ceramic? I am thinking it is the last one. If it is just the ceramic leaking, then it is very common. The cause is over-torqueing the plug. That will distort the metal base of the plug, cracking the seal between that and the ceramic allowing leakage. It will burn the spark plug boot and discolor the white ceramic of the plug.
Always torque the plugs to spec or make sure the service dude does. Too little torque and heat transfer suffers and you can overheat the plug causeing detonation, too much torque and they crack and leak. Not sure what the torque is sposed to be, but most plugs call for around 35 ft/lb.
Goodluck
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
Another Plug blowout
Ron ,what he is saying is the sparkplug blew completely out of the aluminum head ,destroying the threads in the head ,only fix is to replace the head ,we have had alot of these lately.
Do a search on the subject you will see.
Rich
Do a search on the subject you will see.
Rich
New User
Joined: Oct 2002
Posts: 3
Likes: 0
Another Plug blowout
Yeeyow:
Thats gotta hurt. I nerver heard of Ford having that problem, but I been running oilburners for a ton 'o years and missed all that kinda fun. I just about went to v-10 on the last truck, now i'm glad I stuck with the powerstroke, lol. Sounds like they got a problem though, and they should get on top of it ASAP or risk losing good customers.
Even More Goodluck... sounds like your gonna need it.:-)
Thats gotta hurt. I nerver heard of Ford having that problem, but I been running oilburners for a ton 'o years and missed all that kinda fun. I just about went to v-10 on the last truck, now i'm glad I stuck with the powerstroke, lol. Sounds like they got a problem though, and they should get on top of it ASAP or risk losing good customers.
Even More Goodluck... sounds like your gonna need it.:-)
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