Spanish German French Chinese Italian Russian . The constant heating and cooling of the engine every day can cause the rubber to stick to the spark plugs or the distributor electrode … I'm thinking head gasket? Very often this is how the spark plugs come out of the engine. If the electrodes are broken off or flattened, it is likely that the wrong spark plugs are installed. The 5.4L is a hard motor to keep functioning correctly. Have to pull the spark plug to do a compression test. We get so many 5.4L in with broken off spark plugs. Once a new plug … Will be checking plugs again soon. Average repair cost is $1,210 at 88,550 miles. A few times I have had broken spark plug in the forward-most driver side cylinder. Bosch indicates low KV will cause ground electrode damage, aka barely enough spark to fire the plug, additionally they indicate additives can be the cause. Forums. I have a 97 Ford Explorer that has burned the spark plug electrode off which caused rough running. Wear factors for spark plugs. minibm. Tis the season for tune-ups, my friends! If a spark plug is too long, it can protrude into the combustion chamber and hit the piston or a valve. Hey, so his is an odd one. Spark plug electrode broken. If you exceed the recommended torque, the shell can shear off below the hex. I was on my way from Kalamazoo to Ann Arbor, MI (about an hour and a half to 2 hour drive) and my car started to miss fire in the first cyclinder. (1) Spark plug selection ・ As a countermeasure to increased stress on the ground electrode, changing to a spark plug with a small ground electrode is an effective way to handle the problem from the plug side. If its not the spark plugs its the cam phasers making noise. If it does loosen, it will be subject to abnormal vibration and this can cause the ground electrode to break off. But the cylinder wall does have 3 very fine grooves worked into it. Broke a spark plug off in an '06 explorer 4.6l 3v head. Refer to the appropriate removal procedure as required. Since then (now at about 110,000mi) I have had to change the plugs about every 15,000mi due to same engine light and rough idle. Spark plugs do wear out over time, although the actual lifespan varies depending on the type of plug in question, the condition of your engine, and your driving habits. I am trying to figure out where you live because in the US from 2002 till current there is absolutely no reason to replace the water pump when changing the head. If the spark plug separates after following the Spark Plug Removal Procedure, it will fail in one of three modes. I am just impressed the spark plug came out at all. This is a picture of a broken off spark plug with the porcelain in tact from a 2004 through 2007 Ford engine (Stage 1 Repair). Upon pulling the spark plug, we can see that the center electrode is melted and fused with the ground (side) electrode. Then I noticed the ground electrode … Advice needed! It's not common for a electrode to actually do any real damage. 11 posts. Spark plugs usually fall into the first category, and that’s what this article is going to discuss: Using spark plug diagnosis to look for possible issues with your engine. If the engine is not performing properly and on removing a spark plug it is found that the electrodes have melted or the porcelain insulation has broken, this could be construed as a spark plug fault, but note that some other possible causes for the poor engine performance are problems with the … Before attempting to remove the spark plug, … So I started to disassemble it and noticed the spark plug was fairly loose in the cylinder. If it happened to just one, you may want to double check the part number, as you may have been given one wrong spark plug. I gave the pull cord a tug and it was locked up. 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