This is what my night is going to consist of

[Fordfanatic101]

So, do the new plugs not break like the originals, or do you have this issue with any of the replacements?

My '06 has 85K, and I need to know.

Thanks!

they will still have the a chance of breaking with the replacements, they did not redesign the heads until 08 on the 5.4s
so 85k would be a good time to change them

 

[Carolinaboy]

06-08 wasn't "as" bad IIRC, but they still weren't great. THe newere ones are supposed to hold up better

I need to do mine I'm pushing 80K

 

[PenguinLTZ]

I will order the tool tomorrow. Thanks Trent and Ross!

 

[davbell22602]

What lisle tool are you talking about? Where do you buy it at?

http://www.amazon.com/Lisle-LIS6560...PZUK/ref=sr_1_1?ie=UTF8&qid=1289948017&sr=8-1

That one, I got it from a friend that bought it to do his swap.

Will that work on any year and app?

 

[Trent]

06-08 wasn't "as" bad IIRC, but they still weren't great. THe newere ones are supposed to hold up better

I need to do mine I'm pushing 80K

The 2006 are just as bad, the head wasn't redesigned until the 07 models.

The replacements will have just as high chance of breaking, I'll probably change those at 100k though.

Sears better have gotten my order right, thats the only place in town I can find a 9/16" spark plug socket at. If they don't have it I'm SOL

 

[Trent]

What lisle tool are you talking about? Where do you buy it at?

http://www.amazon.com/Lisle-LIS6560...PZUK/ref=sr_1_1?ie=UTF8&qid=1289948017&sr=8-1

That one, I got it from a friend that bought it to do his swap.

Will that work on any year and app?

I have no idea, I only know it works for the 04-06 models. The newer F150s shouldnt have that issue.

 

[PenguinLTZ]

06-08 wasn't "as" bad IIRC, but they still weren't great. THe newere ones are supposed to hold up better

I need to do mine I'm pushing 80K

The 2006 are just as bad, the head wasn't redesigned until the 07 models.

The replacements will have just as high chance of breaking, I'll probably change those at 100k though.

Sears better have gotten my order right, thats the only place in town I can find a 9/16" spark plug socket at. If they don't have it I'm SOL

9/16" plug socket??? What a bastard size. My Snap-On guy will love me tomorrow.

 

[OldCracker29]

06-08 wasn't "as" bad IIRC, but they still weren't great. THe newere ones are supposed to hold up better

I need to do mine I'm pushing 80K

The 2006 are just as bad, the head wasn't redesigned until the 07 models.

The replacements will have just as high chance of breaking, I'll probably change those at 100k though.

Sears better have gotten my order right, thats the only place in town I can find a 9/16" spark plug socket at. If they don't have it I'm SOL

9/16" plug socket??? What a bastard size. My Snap-On guy will love me tomorrow.

Wow, I didn't know there was such a thing. I'm glad mine are 5/8.

 

[Z71_Silvy]

There's a thread floating around of a Mustang owner...with nly 38K on the odo...who had 6 of the 8 break...at the Ford dealer. It cost him $600+ to have his plugs changed.

I actually found the thread:

Well, after reading all the horror stories, I'm going to pull & replace the plugs in my '06 GT with 38K miles. I have a new set of HT1 plugs,my socket, Permatex nickel anti-sieze and Aerokroil. I am nervous as heck but I figure I've already waited longer than I should have. I am so angry at Ford for this horrible design flaw. I love my Mustang, but I shouldn't have to fear changing the damn plugs. I'd love to see a class action law suit over this, Ford should bleed.

I talked to the dealership service dept. today. He said yes, he had heard of this problem, but that it is much more common in the 5.4L in the trucks. God, I hope this is so.

Well, I'm screwed. Absolutely went by the letter of the TSB, did everything just as directed and the second plug broke off-in the worst way, the porcelain stayed in the lower part of the plug. I just threw in the towel, called AAA and had the POS trucked to the dealership where I bought it.

I am so depressed right now I could just croak. This car only has 38K miles (of course, 2 K past warranty) on the clock and God knows how much it will cost to fix it, and if it will ever be the same. This is the first car I ever ordered from the factory and was my retirement gift to myself. At this point, I doubt I'll ever buy another Ford product. I wish to heaven I had taken it in to the dealer before the warranty expired-but I didn't. If you have a Ford vehicle with the 3V heads, I would trade it before you need new plugs. Good luck to you, brothers.

How much does it cost to install 8 spark plugs in a 3V Mustang? $611.13. That was the bill when I got my car back. I had broken 1 spark plug, my authorized Ford dealer trained techician (the dealer's best engine man)broke 5. Gee, do you think there's a problem here? Let me remind you guys, this was with only 38K miles on the clock. I doubt I'll ever feel the same about this car again.

Here is the linkt o the thread. Click.

You will find a video tutorial on youtube and links to the TSB on how to remove them.

Good luck.

 

[Carolinaboy]

06-08 wasn't "as" bad IIRC, but they still weren't great. THe newere ones are supposed to hold up better

I need to do mine I'm pushing 80K

The 2006 are just as bad, the head wasn't redesigned until the 07 models.

The replacements will have just as high chance of breaking, I'll probably change those at 100k though.

Sears better have gotten my order right, thats the only place in town I can find a 9/16" spark plug socket at. If they don't have it I'm SOL

Oh ok, well good luck. I need to mine soon. I am gonna start saving up for my 100k service