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Here are my plugs with 100K miles on them from my 08. Removal was pretty much pain free except the rear driver side plug as it had hard vacuum hoses and wire looms directly over the COP-that one took 15 minutes. The other took about 5 minutes each. Here are the plugs.
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1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2
So are you just going to put them back in for another 100,000?
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1997 F250HD 4wd, 460-5-speed Ext. Cab, Blue
2007 Navigator L Dark Blue Pearl
2003 Mercury Marauder, Dark Blue Pearl, Trilogy Supercharged, 13.1 @ 105
Well the manual suggest 90K and I just didn't have the money or time to do it any sooner. So 10K over wasn't too bad. All other maintenance is done on time.
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1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2
Berry, did you follow any specific procedure for removing them ? Mine's an 08 also, built after the Nov 07 cutoff date for the new plugs so I was just wondering if you did anything special.
No. If you have the brown boots you are safe. Didn't take much effort. I cracked the first one 1/4 turn, sprayed PB Blaster and let it set for 20 minutes. I tried not using it on the second plug and it was virtually the same, easy so I didn't do it on the rest of them.
If you have the black boots, it's a different story.
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1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2
my 07 has black boots and i hate the fact that i need to change them! i am at 84,000 and have toyed with letting the dealer do them for $300 plus plugs well thats what i was told it cost if no trouble rises
__________________ 2012 F150 XLT 4X4 crew cab 5.0 with 3:55 lockable rear end
Can you put old and new side by side? Gotta admit I've never seen these plugs out of the engine. Mine were changed by the dealer in the past month or so at 100,000 miles.
after reading this i went and had mine changed for a total of $425. dealer told me they had three that broke and need to do a retraction on one the other to broke but came out still. today is my first day with it back well the wife has it ill post up how it running when she gets back!
__________________ 2012 F150 XLT 4X4 crew cab 5.0 with 3:55 lockable rear end
Can someone inform me on what the issue is with changing the plugs...I know they are pain to get to,but what is the issue with the brown and black boots...I've never heard of this,so I just want to be prepared....Thanks
Berry,
Have you notice any changes? better fuel economy, smoother idle etc.
Thanks
It runs better. Throttle response seems a little snappier and idles a bit better. The old plugs were not in bad shape so there is not a lot of difference compared to someone who's plugs are worse off.
I don' have a new one to show the difference, but other than color and a very minor amount of wear, they look the same.
If you have brown COP boots you are safe-the plugs and heads have been update to eliminate the broken plug issue. The dealer still quoted me $299 labor for my plugs. It took me a total of about 1.5 hours-but I don't work fast and took my time. It's really not hard at all. Much easier access than most cars.
If you have the black boots on your 2008 or 2007 chances are you will break a plug.
You need a 9/16th spark plug socket-I couldn't find one locally and used a 14mm in a pinch. I would suggest getting a 9/16th magnetic socket. Other wise you need a telescoping magnet to get the plug out after it's loosened-it's too deep to reach with your fingers.
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1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2
Great...I have an 08 with 48k on it...I know its a little too soon to replace plugs and mine runs perfect,but will I possibly benefit from doing it earlier and what is the production dates or series that I can use to determine if I may or may not have a problem without having to look at the boots???...What plugs are being recommended to avoid future issues???....Do these engines also have the plug blowout problems that the earlier ones did???..
Great...I have an 08 with 48k on it...I know its a little too soon to replace plugs and mine runs perfect,but will I possibly benefit from doing it earlier and what is the production dates or series that I can use to determine if I may or may not have a problem without having to look at the boots???...What plugs are being recommended to avoid future issues???....Do these engines also have the plug blowout problems that the earlier ones did???..
Well can you pop the hood and look at the boots? It takes about 10 seconds. Brown=good, Black=bad.
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1978 F250 Lariat 4x2
2008 Expedition Eddie Bauer 4x2
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2012 F150 XLT 4X4 crew cab 5.0 with 3:55 lockable rear end
