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Old 05-20-2004, 06:45 PM   #1 (permalink)
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spark plug blew out on 5.4 triton

Ok where in the world are the spark plugs on a 5.4 Triton ? A freind brought his truck by and wants me to fix it ,But I dont see the plugs or wires . This new stuff scares me. the dealer says they have to remove the dog house hhhhhhmmmmmmmmmmmm thats wild hu. So any suggestions
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Old 05-20-2004, 07:47 PM   #2 (permalink)
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spark plug blew out on 5.4 triton

Its a cover on top of the valve cover. Pull it and theres your plug wires. 10 feet below that in the middle of the head are your plugs.
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Old 05-20-2004, 07:47 PM   #3 (permalink)
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spark plug blew out on 5.4 triton

they are down in the head near injectors and get ready to remove the head it will have to come off to repair it
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Old 05-20-2004, 08:06 PM   #4 (permalink)
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spark plug blew out on 5.4 triton

This is on a pickup truck?

Coil on plug setup. WE (dealership), have to replace the head when a plug goes kapoooeeee. No repairs.


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Old 05-20-2004, 08:06 PM   #5 (permalink)
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spark plug blew out on 5.4 triton

this just happened to my work truck. it's a 98 e350 cube van. no need to remove the head, you can get your hand in there and put a heli coil in it.
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Old 05-20-2004, 08:10 PM   #6 (permalink)
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spark plug blew out on 5.4 triton

That is usually only a V10 thing so hearing it happening on a 5.4 is weird. There are no plug wires, only coil packs that sit on top of the plugs which are recessed in the top of the heads. The coil packs are right next to the injectors and just disconnect the electrick connector and remove the single hold down bolt and lift the single coil pack out of the way. Then use an extension with a 5/8" plug socket and stick it way down in the hole and remove the plug or use pliers or magnet to remove the popped plug. I just went thru this myself on my V10 on #4 cylinder up under the cowl in a super tight area. There is a spark plug helicoil kit specifically designed for the Triton series heads and you don't have to remove the head to repair it unless it's a V10 with #4, #5, #9, and #10 cylinder plug popped. Then the cab has to be lifted off the frame for access(easier than pulling whole engine). Change all the plugs and don't under torque(the reason for plugs popping out from wearing out the treads from the plug moving up and down against the threads on the aluminum heads) or over tighten(stripping out). Have fun and if I can remember the place that sells the Triton specific heli coil kit for the spark plug holes I will post it. The alum heads actually use a tapered seat plug instead of a gasket type which is very strange. Ford has revised the spark plug giving them more threads and now the plug replacement part number is for the newer style plugs. They realized thier F_CK-up without actually admitting it. It's typically $3000-$3500 at the dealer to have the head repaired(replaced actually) on a F250/F350 truck or Excursion/Navigator. I know what the owner is going thru and it is fairly common on the V10s through 2002 when the problem was corrected. The old plugs only have about 3 threads and to top that off many plugs were under torqued at the factory which is causing these problems. $130 for a coil pack(can get for about $90 from Ford with a discount) and the Ford platinum plugs are about $5 each which adds up in a V10. Be sure to blow out the crap from the plug holes on the other cylinders after you remove the coil packs but before you remove the plugs. Spray WD-40 on the new coil pack and on the old coil packs before you reinsert them to help them slide in the spark plug hole and seal better.
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Old 05-20-2004, 08:25 PM   #7 (permalink)
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spark plug blew out on 5.4 triton

And these are an improvemnent over the 351 and 460 pushrod V-8's?

Ask me if I would appreciate changing the plug more often or suffering from a little more noise and vibration from an old stye cast iron V-8 or have pay for either a vehicle dissection taking the cab of to change the plugs/heads)and/or a $3000 plug change...no brainer in my neck of the woods!

We are talking about a T-R-U-C-K!...not an Italian or German sports car, right?
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Old 05-20-2004, 09:13 PM   #8 (permalink)
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spark plug blew out on 5.4 triton

Replacing the plugs is no big deal but the aftermath of the blown out of the hole spark plug is when the fun begins and gets expensive. Tat's when it costs over $3000 to repair when the head has to be removed which Ford dealers are instructed to do rather than "fix" them with a heli coil. I love my V10 and it is better than the old pushrod engines. Smooth, quiet, torquey, responsive, and deadly reliable(when plugs aren't flying through the hood ). Just check the tightness of the plugs right away if you ever buy one. Then you never have to worry about it again and my plugs were nice for having almost 70,000 miles and technically these engines are supposed to go 100,000 miles before their first tune-up but check the plugs when you recive the vehicle to eliminate any future problems.
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Old 05-20-2004, 10:29 PM   #9 (permalink)
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spark plug blew out on 5.4 triton

100k before tunes.............yah, right.
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Old 05-21-2004, 12:02 AM   #10 (permalink)
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spark plug blew out on 5.4 triton

Brother in law has a 97 F250 light duty that blew out #3. Managed to get a new insert into it but it wasn't fun. I used the insert that screws in the you brad it over. Still holding 3 plug changes later. Just be very careful when brading the insert , those heads aren't very thick there. Good Luck
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Old 05-21-2004, 01:52 AM   #11 (permalink)
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spark plug blew out on 5.4 triton

Quote:
On 2004-05-20 22:29, drag79stang wrote:
100k before tunes.............yah, right.
Theres a ton of cars out now that go 100k between tuneups. Been mainstream for awhile on most luxury cars and now its getting that way on all cars.
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Old 05-21-2004, 02:30 AM   #12 (permalink)
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spark plug blew out on 5.4 triton

I for one will always prefer my pushrod engines. My 460's for torque & 12-14 MPG & my 5.0 mass air truck gets 14 with a trailer. Shoot, my 20' motorhome gets 10!
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Old 05-21-2004, 04:30 AM   #13 (permalink)
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spark plug blew out on 5.4 triton

Same thing happened on my buddies 2000 model Lightning.

He did pull the heads to have it fixed, and while he was at it had steel inserts installed and a full on port job as well lol. Needless to say his truck is alot faster than mine now

so it does happen to the 5.4's as well

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[ This Message was edited by: jrickey86LX on 5/21/04 4:31pm ]
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Old 05-21-2004, 05:23 AM   #14 (permalink)
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spark plug blew out on 5.4 triton

i work as a service mgr for a ford dealer and im telling you the head has to come off we have done over 25 of these my advise when head is off have all holes drill and install full length inserts installed
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Old 05-21-2004, 08:01 AM   #15 (permalink)
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spark plug blew out on 5.4 triton

I had a Navigator that came into the shop with a blown out spark plug on a 5.4. I Installed a heli coil in the head and it worked out fine. It saved the customer big $$ and saved me a broken back.



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