WE might solve the sparkplug issue, by finding a COMMON thread that Ford doesn't know about or doesn't want to admit.

If you have changed your plugs, just put down your type of truck (motorwise) and:

1-What mileage did you change at?
2-What was the number of the sparkplug you took out?
3-What was the number of the plug you installed?
4-Did any of the plugs you removed break off?
5-What was the production date of your vehicle?
Add anything else you think might show a pattern.

I have a stock '04 F150 3V 8 cyl short bed:
I changed my plugs at 47,000.
Old plug was PZT 2FE
New plug is PZT 2F
NO plug breakage, but they were very carboned up.
Prod. date:June '03

So if you changed your plugs and had good luck or bad , join in and lets see if we can figure this puzzle out.

 

1. 27Kish.
2. PZT-2FE
3. PZT-2F-F4
4. No.
5. April '04.

It's not carbon, it's rust. The material that the plug is made of reacts negatively to the aluminum in the cylinder head, at least that's what it looks like to me.

 

I can't believe you don't want to share your information about this issue.
It could simply be a specific plug number which is causing the problem!!
No answers, except Quintin?
We both had the same type of plug and both came out successfully.

 

only 15000 mile so no plug change yet.

bump.

 

18k, original plugs as well.

 

43,000 miles, original plugs

 

u should change em buddy.

 

35,000, I decided to go for the 100,000.

 

18k Miles. No change (yet). No problems

 

Nope, they are supposed to be good till 150,000 km (90 K miles) and my lease ends at 120K km (75 K miles) so I am not touching them. Who ever buys it can deal with it.

 

Another reason to buy NEW vehicles vs used.

 

Yup, I just lease them for 3 years/75 K miles. they pay for themselves because I get payed mileage on them, I just do the required maintenance at the required interval and all is good. I am not going to put a bunch of extra money into a vehicle so that someone down the line has something reliable. That is their problem. I pay enough for this dang thing as it is.

 

04 F150 FX4 supercab. 11/11/03 build date. All 8 plugs replaced by dealer at 34,500 miles as part of cam phaser and lifters replacement under warranty. 4 plugs broke off so they had to remove heads. They reported nothing on corrosion, but why did 4 break off? Maybe just rough wrench work bcause they were doing warranty work?

 

96k still original plugs....no problems

 

to bogman--

But what was the number on the spark plugs which broke???
And where and when was your truck made??
You could help.
Maybe this problem is only in 4x4's??