Ford F-150 - 1997-2003 :: Spark Plug Blow Outs / Cylinder 7 Nearly Stripped Out
Dec 13, 2015
With the many discussions on F150 spark plug blow outs, is there any consistency in which Cylinders usually go or is it completely random. In my 2003 F150, 4.6, 2wd, I've replaced #3 cylinder with insert and now #2. Currently I'm at 154,000 miles but want to travel cross country with a load. I don't want to stall out on the hwy, would it be wise to go and insert the remaining cylinders - not cheap. My mechanic is willing to inspect with a bore scope the threads and re-torque. Is there a point at which if it hasn't been a problem it won't be. Truck is used primarily for commuting and to pull a single jet ski in the summer. Both blow-outs happened at a stop-light about 20,000 miles apart with no load.
Follow-up. Did inspection, found cylinder #7 nearly stripped out - it was actually pushing up the coil. Funny thing is, this plug had already the small insert which was coming out with the plug. I bought the vehicle new. Was this a factory repair? or did my previous mechanic strip-it when replacing all my plugs at 95,000 miles? Lucking the large inserts my current mechanic uses was able to find some metal and make a good repair. Looking at the cylinder order, I have now replaced 3 of the inter four cylinders (2,3,7) should have I done #6 too, this is probably the next high risk cylinder or not?
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I had a plug blowout last Thursday on the freeway. I wasn't sure of what happened with my truck, it was a shutgun going off. I had to towed to my local Firestone.
My truck is a F-150 4.6 2003 with 206,000 miles.
The short of the story, plug #3 blowout. It trashed the coil and I needed a new plug. They used a Helicoli and I have been reading that they shouldn't have used a Helicoli. They should have used a Time-set.
What's wrong with the Helicoli's? Is this fixed going to last for awhile? They said the helicoli worked well. The truck had 7 NGKs and 1 motorcraft. It has all new motorcrafts now.
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My son has a 2001 F150 with a 4.6L V8 that's blown a sparkplug from # 3 cylinder. The plug looks as if struck by lightning and has a burn groove as deep as a kitchen match stem the full length of the threads.
How difficult is an engine swap/change using another 4.6L? Neither of us have extensive mechanical backgrounds but plenty of aptitude.
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I need to tap a bigger hole and put in an insert for the spark plug. I can see that the piston is far enough down so that it won't get harmed from the process. But if I don't get the intake and exhaust valves shut, and then use compressed air to blow out what chips I can, and then I start the engine for a few seconds to blow out anything else (with the coil unplugged of course) will a few remaining chips, along with some that may have gotten blown into the intake, be a big problem? It's an aluminum head, so I can't see the chips doing much damage before they go out the exhaust or end up in the oil filter. But I am just guessing. I don't have the tool to test when all the valves are shut. Also, is it possible that a valve might be in the way and get damaged from the tap?
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I was taking out my plugs 2 of them were soaked with gas and oil and 1 of the other ones just spins. what do I do? The car is a 1995 tbird 133000 miles the car has been sitting for a year and I couldn't get it to start that's why I am pulling the plugs the car ran fine when it was parked....
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I have a 1997 F150 4.6 V8 and as we all know these trucks are notorious for the spark plug blowing out. Although when I bought it I never had an issue until we put motorcraft plugs in. After a couple weeks of having these plugs in the porcelain blew out of the plug with the threads still in the head. The spark plug screws into a threaded insert which then screws into the head. We replaced the plug and nearly a month later the porcelain blew again. Replaced it, same story a week and a half later. Before the motorcraft plugs I had autolites in it, and I never had the slightest spark plug blowout problem. Should I just put an autolite in the cylinder that's blowing them?
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1997 f-150, 4.6, 147K miles. This morning I started the truck and the engine light was on. Felt a miss in the engine. Drove 1 mile and back then checked the wires. Found one not firing. Traced it back to the plug. When I pulled the plug boot off I noticed water in the recess, surrounding the plug. Once I blow out the water, I'll checjk the plug but I would like to know if this is a natural occurrence. I thought the boot would prevent water from filling the recess and sitting there. Or does the water just evaporate when the engine gets hot?
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i just purchased an '01 expedition with the 5.4. I was told #5 spark plug blew out. Upon examination, it appears to be #6, second from the front driver side. Anyway, as I was looking, it just didn't look right. There was a spark plug socket stuck in the well, with the plug still in place. How to get the socket out? I can get an extension on it and it will turn, but it's tight. But I can't pull the socket out.
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Okay so I was getting the misfire in cylinder 3 so I pulled the plug out and it had coolant in it. Does that mean it needs a new intake manifold gasket? That is what the guy told me at the parts store. Also can I drive it like this or will it damage the engine?
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I have an 01 f150 with 5.4 triton. This has been great truck, never really had to do anything to it. It has 195k on it. Week or so ago it started running rough. So I replace the plugs and coils. I noticed some of the plug wells had oil in them. Got done and the truck is running like new.
Not sure where the oil is coming from. Not the piston as the plug was dry on the tip and truck not smoking any. I has began using a quart or so between oil changes. I have always changed it every 3k. Is it just time for new motor. Like I said it is running like new.
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I recently took a 4.6 from a 98 e-150 van and put in a 1997 f 150. put new oil pump, bearings, and rings. Got everything hooked up and ready to roll. turn over but no spark to any cyl. What it might be?
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I was checking my COPs and the first one I pulled out of my 2002 f150 5.4l had a clearish liquid on the coil boot. I looked down in the spark plug hole and it was filled almost to the top of the spark plug itself. I smelled it and it smelled like gas. Why this would happen and what should be done to fix it?
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I found a leak today on my 2001 Ford F150 Super Crew, 5.4 engine. In the picture, it was leaking to the right of the spark plug, behind the hose. It was bubbling up from the metal. It hasn't been overheating except when I got home and idled with the AC on. What I'm facing?
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This a 02 with 5.4, had codes po306, pulled and checked sparkplug had moisture in it. Fixed that ran ok for a little bit then started again, no codes now and smells a little like rotten egg.
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About a week ago I blew #10 spark plug out of my 1999 super duty. I was able to screw it back in, though it only has 2 1/2 threads now, and was able to put 12 ft/lb's of torque on it. I am driving it around and it is running fine but i am wondering if i am sitting on a ticking time bomb thats gonna blow at a random time, and if so what should i do about it. Should i just run it until the plug fully blows out, or is there an easier and cheaper fix that i could do if i fix it before the threads are fully stripped out. I have heard about Time Serts, but without pulling the head i would be scared of having a metal shaving get down into my cylinder and scratch the hell outta it.
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Last weekend my number 4 spark plug blew out while on the highway. The truck stayed on long enough for me to get off the highway and pull over before it died. I towed the truck home. Last night I repaired it with a helicoil and replace the spark plug and coil. Now the truck cranks but won't start. I noticed that my theft light flashes fast and doesn't stop after a few seconds or during cranking. I still haven't tested relays or fuses because it was late after the repair. I will be checking those tonight.
I will be reading and taking suggestions and posting my results tonight while I'm working on the truck. I will be checking the fuel pump and PCM relay tonight. I will also try 2 different keys and checking the Inertia switch on the fuel pump to see if that tripped. The truck is a 2001 F-150 Lariat Supercrew with 150k miles on it. 5.4 liter engine.
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My girlfriend has a 1998 Cheve Cavalier that recently on the way to work completly blow out the number 3 spark plug. It was completly gone and poofs of air now come out of it's place?
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I am currently doing my injectors. Just a quick question. I was trying to get the fuel rail drain plug out but it stripped, actually not on the driver side stripped. I know there is the drain plug on the back of the cylinder. If I drain that and turn the crank over by hand will that drain all the oil and fuel that has drained into the cylinder? I'm really not trying to bend a rod when I turn this thing over. It's A 2001 7.3
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How to get the spark plug out of cylinder #4. I have the kit to take out the base of the plug out of the head if it breaks off. But I can't get the plug out. I think the plug broke off but not the electrode. So the electrode is caught up in the porcelain tip of the plug. It's pretty tight back there with the a/c lines and fuel rail and other stuff. I tried needle nose but they just don't grip it right, to get enough force to pull it. These are the plugs with the extended tips.
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I am getting a cylinder 5 misfire and this has been a "on again off again" situation since last August. I took it around to a few places and the general solution was to get new spark plugs. After doing a bit more research I was advised to change the coil cover. I did that and it fixed the problem. Then about 4 months later the light came on again. I happened to change the air filter and the light went off. I though great, problem solved! not so much, when i went to the mountains the other day the light came back on. I did my research again and I have decided to get the plugs changed. Its a 2005 f150 with 94,500 miles on it.
I am told its time to change them regardless. I started calling around and getting quotes and have been told by multiple shops that ford made the plugs in my truck in a bad way. They have been telling me to change them and breaking them is a 50/50 shot. THEN, when they quote me they charge a rate to replace them plus the plugs themself. If they happen to break one then the customer pays for the new one. Do the plugs would really break that easy and should I plan on replacing some of them?
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I have a 02 F250 with 137 thousand miles. When it had 130 thousand on it I had the plugs changed unknowing that this year 5.4 was known for blowing the plugs.
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