Ford F-150 - 1997-2003 :: Truck Won't Start After Blown Spark Plug Repair
Oct 10, 2013
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 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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The spark plug in chamber 2 blew off while the vehicle was in motion (approx 35 mph). Purchased replacement plugs and when I went to install, there was nothing for the plug to grab (i.e. appears that all of the threads on the block/casing are gone . Not sure what my options are.
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My 2003 Toyota Matrix xrs blew spark plug, totaled engine. My husband had trouble with it stalling, the next day I drove it about 60 miles. I did have some trouble with it stalling but on the way home it got worse and was glad to make it back.
Took it in and they said pieces of the spark plug got in on top of the piston and got so hot it cut into the piston and won't hold compression. Hence totaled engine. The shop is willing to take car in payment of work done.
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My 2001 F150 4.6 threw the #3 plug on the passenger side while going down the road at 65 mph. It threaded back in and tightened up to make it the last 7 miles home. I have read that Time serts are the best option but I need this truck daily at work. Has anyone tried using the Heli Coil system as a temporary fix? I am going to order the Time Set kit but since I need the truck now, I was wondering if it were possible to pick up a Heli Coil and insert it until my Time Sert kit arrives?
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2000 Excursion with the 5.4 in her. Lots of miles. Used only to tow a travel trailer. Blew out the #3 coil packet and spark plug today. Have to pull the head for sure. My question is why? Is there a more severe problem as to why it did this? Or is my old girl just worn out. 270,000 miles.
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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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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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I bought a 2000 excursion a month ago and have already had 3 plugs blow out on me. They've been repaired professionally with time sert but the mechanic is starting to wonder if back pressure is building up causing this. He's suggesting to replace the catalytic converter as it's original and has 120,000 miles on it. He's made it clear that he doesn't know if this is the cause but to lose 3 in a month worries him. Is there anything else I can do?
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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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My son has a 03 mustang GT. He called and said it was making a loud clicking sound. I investigated and it appeared to have a exhaust leak, but I couldn't feel where it was coming from. I started tearing down until I got to the plugs. One of them blew out if the head. I was shocked. Have you heard of this in a car? I'd heard the Ford trucks had problems with the plugs blowing out. Its fixed and running like a champ now.
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So, last weekend the GF said she had been hearing a tick in her 2006 4L Ranger. I crawl up under it and see the right rear spark plug and wire vibrating and could tell it was loose. I jack it up, take the right front tire off, pull the liner back, and finally get a socket on the plug to tighten it. I tighten it by hand first the then the finale snug down with the ratchet.
I notice it snugged up but I just felt it was trying to slip so I stopped. Well, it lasted two days and now has fallen out again. It appears the head is stripped. I am going to pull the plug out tonight and see if I can see where the threads are stripped. I assume I will find material on the threads of the plug.
My question is, is there anyway for me to make a temp fix till there is time to pull the head and repair it properly? I saw NAPA used to have a kit for the Triton engine but when I went to their web site I couldn't even find that anymore.
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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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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 have been having some issues with my 97 ford f150 4.6 liter, started out running rough, then hydrolocked with no serious damage, blown intake manifold gasket, fixed that, alternator over charging do to bad voltage regulator, fixed that. and airbag code 52, still working on that, as well as failure to connect when trying to do diagnostic scan. now I am wondering if the engine diagnostic is still even working. still running good just a very slight vibration when warms up. I am not getting any code. or my check engine light is not showing any codes. What I want to do is force a code. What would be the safest way to force a code or force engine light to give a code?
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1997 F150 4x4 4.6. Truck was running fine ...suddenly shut down & now no spark, no fuel pump run, no start
1. Shot ether -no start
2. pulled plug - no spark
3. Checked crank sensor - reading .5 - .6
4. Checked fuel inertia switch - seems good
5. Switched fuel relays - no change
Thinking ECM/PCM. Also.. ?? will the "no spark" condition create a "no fuel pump run" condition ? or visa versa? I'm not positive about the reading from the crank sensor... it stays solid at .5... should it move up & down or remain constant ?
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