NOTE: TSB 08-7-6 supersedes the earlier TSB 06-5-9 that also covered the same subject. If you want to read a long list of horror stories from Ford owners who have had to deal with the broken spark plug problem, Click Here.įord Technical Service Bulletin 08-7-6 covers the recommended removal procedure for these spark plugs, as well as the repair procedure if one or more plugs break ( Click Here to View Ford TSB 08-7-6). In some cases, it may even be necessary to remove the cylinder heads to complete their repair. Why? Because the plugs usually stick and break, and it takes a lot of time and effort to extract the debris from the spark plug holes. Many Ford dealerships are charging $600 to several thousand dollars to change the spark plugs on the 5.4L, 4.6L and 6.8L engines that have the two-piece Motorcraft spark plugs. The risk is if you attempt to change high mileage plugs and break off several plugs (which commonly happens), those spark plugs could cost you a lot of money. If you are planning on selling or trading your Ford truck or Mustang within the next couple of years (and it is running fine now), leave the spark plugs alone and let the next owner worry about changing them. So as long as your engine is starting and running fine, and getting normal fuel economy (no misfiring and no Check Engine light with misfire codes), there is really no need to replace the spark plugs. Many plugs will actually go up to 140,000 miles or more with no problems - provided the engine is not burning oil and sees enough highway driving to keep the plugs clean (frequent short trip stop-and-go driving can cause plugs to foul). The plugs should last upwards of 100,000 miles or more. The original equipment Motorcraft spark plugs have a platinum tipped center electrode. If your vehicle has a lot of miles on it (say over 80,000), and the spark plugs have never been replaced, it might be best to just leave them alone. Waiting until the original equipment spark plugs have 100,000 miles on them is asking for trouble!
Replacing the plugs at low mileage will reduce the risk of them sticking and breaking. Many experts recommend replacing the original equipment Motorcraft spark plugs before the get too many miles on them (over 40,000 miles). Remove the cylinder head to get the debris out. Worse yet, if any shell or electrode fragments fall into the cylinder and can't be fished out, you may have to Removing the broken shell requires a special Ford, Snap-On or Lisle extractor tool. When you attempt to unscrew the plug, the lower shell breaks off and stays in the head. Rust and corrosion on the lower plug shell can also cause it to stick.
The Motorcraft PZT 2FE Platinum spark plugs have a crimped lower electrode shell that becomes coated with carbon, causing it to stick in the cylinder head. The original equipment Motorcraft brand spark plugs that were factory installed in many late model (2004 to 2008) Ford trucks with 5.4L V8 and 6.8L V10 engines, 2005 to 2007 Mustang GT 4.6 & 5.4L V8 engines, and 2008 Mustang GT models built prior to 11/30/07) can break when you attempt to remove them!Ģ005 - 2008 Ford Expedition and F-Super DutyĢ005 - 2007 (and 2008 models built to 11/30/07) Ford Mustang GT with 4.6L V8 engine (uses 3元E ignition coils) Watch Out for Ford Motorcraft Two-piece 16mm "High Thread" Spark Plugs That Break!
#HOW TO INSTALL SPARK PLUG BOOTS ON A 2010 F150 5.4L MANUALS#
This isnt the kind of thing one would want to get wrong and assume since being wrong could have devistating effects on the engine as well as the pocketbook.Auto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, Indexįord Broken Spark Plug Problem by Larry Carley copyright 2019
If the Brown Boots will work for either plug, that I guess that's all I would need to know. So I guess what I'm asking now is, the Spark Plug I'm sure must go with the Engine Design and not the Boot color so if I change my Black Boots to Brown, will the next owner mis-interperute that color boot and possibly put in the wrong plugs on the next change. The previous answer to my question was that the Boots (Black and Brown) are interchangeable but the Spark Plug are actually different for the "Old" and "New" engine design. I have a 2007 which means I have the Black Boots and I did verify that. Ok, I may be over-thinking this but since the new engine design came out sometime during the 2008 production cycle, everything from 2003 to 2007 is definitely "Old" design and 2009 forward is "New" design and 2008 models will have a mixture of "Old" and "New" designed vehicles.
0 kommentar(er)
