Thank you very much GLC

 

holy crap!

 

so now that everyone can see the plug, I'm gathering a list of why' causes. This is what I have so far, please add if I've missed something as I'm trying to associate this with the spark plug change the dealer performed.


1. intake leak (do they remove intake to change plugs?)
2. put in different heat range plug and didn't re-map ecu
3. re-mapped ecu but it didn't take
4. didn't hook up knock sensor
5. didn't hook up o2 sensor
6. if they did hook up sensors, why didn't it throw a code?
7. dealer suggested bad fuel but that wouldn't cause detonation in only one cyl., it would be in all of them right? need to look at all cyl. then
8. Original plugs that were in motor for 102 thousand miles were not burned up like this one so the fact that it has 102k miles on motor did not cause the problem right?
9. was told that none of the original plugs broke when they took them out and if they didn't drop anything in there and they weren't burned up, then this was not pre-existing condition right?
10. coolant / head gasket leak - was head gasket damaged? I did have them do coolant flush during same service- this may cause damage to piston but coolant would not create lean condition enough to damage plug like this would it?
11. They had to do something with throttle body, would that have anything that would create lean condition?


What am I missing here...


thanks all.

 

I would like to see photos inside that cyclinder. Piston and valves. That plug experienced extreme heat. Is the piston damaged do to heat/detonation or debris in the cylinder. This is so unfortunate man with only 102k hopefully the dealer will do right by you.

 

talked to talked to dealer this morning wanting to look at head, he told me
that he decided to pull whole motor next week to look at everything easier...since he decided this without asking me and it was agreed that head removal was on his dime, so is this


man this guy is either stepping up to the plate or setting me up big time


will post updates as the come.

 

hey guys, below is a link to the pictures of the head, cyl. and piston.
The dealership says that the damage is due to coolant in cyl. not related
to the spark plug change and coolant flush that I had them do. I noted to them that head gasket is not broken so how did coolant get in cyl., they said it could have been just a hairlines worth of leakage.


http://s428.photobucket.com/user/Bil...=recent&page=1


Bottom line is they are not going to repair it for me.


Are they right and I am wrong? It looks like coolant to me since the head
and piston have no carbon on them...just hard for me to believe it was just a coincidence as far as the timing of this all happening.


I am willing to accept the truth even if I'm wrong but is there anything
else that could have done this related to their work listed above?


thank you very much,
Bill

 

Does anyone know where this is written down? I had a new idea of what could have happened....


reading tech articles on changing plugs, I found the following:


Loosen the plug no more than 1/4 turn. Stop and pour a small amount of carbon dissolving solvent into the plug tube. Motorcraft offers chemical PM3. Allow this to sit and hopefully loosen the carbon.

Tighten the plug and then loosen again, several times. Do not apply more than 35 foot-pounds of torque trying to remove the plugs

If the plug comes out, crank the engine several times to expel any liquid that could have entered the cylinder.[/FONT]


Is it possible the tech used a lot of this chemical to get plug out which in turn got down inside cyl. , was not removed and this is what cleaned cyl. carbon off rather than coolant since the head gasket isn't damaged?

 

Hello all, I wasn't able to prove anything they did caused the damage,
I need my truck back, so bought a long block, installed for $5,500. 3yr
warranty parts and labor....


The new svc mgr the have that I have been dealing with seems real honest
and talking to the mechanic, he seems honest so am moving fwd,
just wanted to let anyone know who helped me...


thanks,
Bill

 

I hope it works out well for you. I know you didn't want to spend the money.
Why wouldn't a new head fix it?

 

Hi Roadie, not sure if you can tell from pics but head wasn't damaged, piston was and after looking at the oil, it looked "gritty" so who knows what else.


thanks,

 

I am struggling with coolant in the cylinder. I am also struggling with how coolant in the cylinder is an explanation for a melted plug.

 

Detonation. Coolant is very low octane.