: How bad is the Ford 5.4 Triton engine ?


GR
11-26-2009, 08:11 AM
I'm looking at buying a '99 F150 w/ 87,000 miles, but got a heads up about the plugs. Plugs actually blowing out of the cylinder. Supposedly not enough threads on the heads. "the aftermath of the blown out of the hole spark plug is when the fun begins and gets expensive. That'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 "A quick google search on this problem now has me very, very leary. There was even an article that the State of California tried to sue Ford over this exact issue.

Is this engine really a time bomb ??

thanks, GR

Vikings Fan
11-26-2009, 08:30 AM
The problem with the 5.4 liter is that you cannot tighten one spark plug without a special tool and the knowledge of how to do it. Simply put you must have that special tool or you will have problems. Do yourself a favor and have a certified Ford mechanic change your plugs. 297,000 miles on my 5.4 L. Super Duty and still going strong. 3 sets of plugs so far. Not the best on gas, but 0 issues with the motor. i would not let the plug problems hold you back.

KHedquist
11-26-2009, 09:59 AM
I went thru this on my 02 last week, 700.00 no they dont replace the head, there is an insert that they use. They changed the plug design, yes the old plugs did not have enough threads, the new plugs are Stainless Steel and they added more threads, there was a space above the present threads that was recessed they now fill that void with threads, From what I was told this resoved the issue. So see if the plugs were changed to the upgraded plugs, if not change them. It is the 3V 5.4 that when taking plugs out they snap off.

buffy
11-27-2009, 11:07 AM
Im with viking fan my 2000 ford sd 250 has 192000 miles with very few problems getting ready for the second tuneup (every 100000 miles)replaced alternator at about 160000 and replaced 3 coil packs over the last 8 years which was my fault for power washing the engine down which is a no no as i found out later.Very good engine my neighbor the ford mechanic says 300000 miles cause hes seen it already out of these motors and he wouldnt bs me.

Manxfishing
11-27-2009, 06:51 PM
I have a 02 SD F-250 with a 5.4
It's been a good motor so far
I had a 99 with a 5.4 as well, and the guy that I sold it to drove it past 150,000 before trading it in trouble free

The spark plug issue showed up in the 00 and later trucks
In 99 there was a issue with the heads gaskets on some trucks
It was the pass side more the the drivers side
So check to see it leaking (look for oil leaking between the head and block)

But as other have said they get allot of miles out that motor
I've known 4 people that have broke 300,000 all trouble free

phowler
11-27-2009, 11:09 PM
I've also got a 1999 F150 with the 5.4. 105,000 miles with zero issues.

Looking forward to buying my next F150 or 250 but the way things are going it may be awhile before I need one.

OldDawg
11-28-2009, 12:38 PM
99 Expedition 5.4 engine 125,000 miles no major issues. Have had to change coil pack on one cylinder. Passenger side next to the firewall.

walteye
11-28-2009, 03:29 PM
'02 F150- just passed 200,000 miles with just 2 coil packs and a bad clutch fan (which resulted in 2 water pumps in the first 1000 miles)-since purchasing new. Believe it or not-I like pulling my boat ( Crestliner SuperHawk 1800) better with my '02 F150 better than pulling it with my '05 F250!
Walteye

rebelrn2001
11-28-2009, 08:20 PM
2 vehicles, an '02 and now an '06. No engine problems what-so-ever. I sell/trade at 100k. Follow the book for maintenance. Strong engine, tows boat much better than the 4.6L I had before these ('98).

KHedquist
11-29-2009, 08:58 AM
Overall I am extremely happy with my 02, no vehicle is 100% perfect, as long as it is maitained well it should do well.

I pull a 19' Tuffy and it does great, I did ad a Magnaflow catback exhaust

Dog Lover
01-07-2011, 11:08 AM
I have a 1997 ford expedition with a 5.4 litre engine. To date my SUV have 456,857 miles. Yes this is true miles and just now I have to replace a head gasket. In my opinion, this engine is by far the best engine I have had in ANY vehicle. Oh by the way I have been an auto technician for 27 years and have rebuilt countless of different engines. Hope this information is helpful.

ChuckD
01-07-2011, 12:35 PM
Wow! Almost 500K!

I had a '97 F150 with the 5.4L. I loved the truck, hauled some pretty hefty loads with it and besides a few coils failing it was a great truck. 140,000 miles when I sold it.

Like already mentioned, '99 5.4L (and some 4.6L) motors had oil leak issues through the head gasket. I understand that year primarily there were some machining issues at the engine plant.

The repair typically costs $1500+ for the repair.

Ford updated head gaskets for these motors, otherwise this leak could reappear every 30,000 miles without the updated gasket.

Google "99 F150 oil leak pass side" Read all about it.

explodition
01-07-2011, 12:44 PM
Almost 250k on my 5.4

Knutson21
01-07-2011, 12:51 PM
I have had a 2000, 2001, 2003, 2005 and now a 2009 Ford F-150 all with the 5.4 and I love the engine. A guy I work with put 260k miles on his expedition with the 5.4 before he traded it last year for a new one. The only thing that I heard bad about the engine was to make sure you changed the plugs before they seized to the engine.

Married with a kid now. This truck will have to go over 200k miles for me. I traded them often when I was single. As you can see.

wallymn99
01-07-2011, 01:10 PM
i had and traded recently a 2006 F150 Screw. It was a good truck for me and never had any issues with the plugs. I had 80k when i traded it. Besides the power windows needed to be fixed, and a few fuel injectors (cause = Ehtanol) it was pretty good to me. They tow well that is for sure. I wouldn't let it scare you.. there are so many on the road that have never had any issues at all.

slambone
01-07-2011, 06:30 PM
Had a 99 Expedition with 5.4, wife totalled it on black ice. Walked away. No problems. Bought a 98 with 171K, well maintained for 17 yo daughter because I know its safe and bulletproof and well maintained in June. No issues whatsoever. Bro in law Ford service mgr- I know this is good, reliable equipment. I am no ford fan, just realistic consumer. Guess this thread confirms.... solid motor! We have a 2004 Toyota 4 Runner that has been exceptional, but Ford is a serious contender- long term.

2 Fords 2 Chevys
01-07-2011, 07:42 PM
2000 Ford Super Duty, 5.4 liter. Original owner
308,000 miles, 3 sets of plugs and still waiting to blow my first plug.
Use 5-30w Mobil 1 Synthetic oil. Change it every 5000 miles. Usually half a quart low when I change.
Most of the drive train is still original.
Not the best on gas. 10-14 mpg. That is not what I bought it for.
Still runs and looks like the day I brought her home. -9 below and started right up this morning again.
Now you got me worried as to just when it will crap out on me?

walteye
01-08-2011, 08:41 AM
After my 2002 F150 was totalled-I bought a 2004 F150 with the 5.4 and 92000 miles. @ 96000 I took it to my local mechanic who I have dealt with for over 25 years to get a tune up done. 4 plugs broke while removing-(Not a thread issue) and they had the proper tool to remove the remaining pieces. The tune up, along with replacing all hoses/serpentine belt/antifreeze and oil change was $1200. Belt and hoses changed precautionary-I always get it done before it gets me done! And it is the 3V 5.4.
Walteye

Further North
01-08-2011, 08:11 PM
I had 1998 Expedition with the 5.4 and traded it at around 150,000 miles with no problems.

rvrdrifter
01-09-2011, 06:20 AM
02 F-150 181,000 miles, problems have been few, smiles have been many, it's done everything I can imagine it doing and still going strong

Esoxchaser
01-09-2011, 06:56 AM
I have a buddy who had the 5.4 in a super duty. Body was rough because it was used on a roofing crew. 98K, no mechanical issues. Sold it to his brother, and within a month a spark plug blew out. Cost a small fortune to put it back onto the road. Within 6 months another plug (same plug, different head) blew out. He sold the truck as is.

ScottL
01-09-2011, 09:47 AM
I realize this thread was started back in 2009 and the original poster long ago made up his mind on buying that particular vehicle, but for what it's worth.
I have a 1999 F-250 with the 5.4 Triton. 223,000 miles without any blown plugs. I have had the plugs changed at least twice and a few of the coil packs also. Otherwise nothing has been done to this motor other than oil changes and a sensor or two. I find the most important thing to do (with all internal combustion engine) is let the motor warm up to operating temperature before putting it under load. I believe that contributed to the blown plug problem.

Further North
01-09-2011, 10:30 AM
I realize this thread was started back in 2009 and the original poster long ago made up his mind on buying that particular vehicle....

Hey, you're takin' all the fun outta it! :happy:

I Walleye
01-09-2011, 12:45 PM
Do you guys change your own plugs or take it somewhere?

By the way, I've got a 2002 with 111011 on the clock as of this morning, no problems other than an alternator.

thump55
01-10-2011, 08:32 AM
The spark plug issue showed up in the 00 and later trucks


Not true.

My '97 has blown out two plugs (4.6L V8) since I got it at 113K (not sure if original owner had any issues). $400 to fix each time with inserts, almost 200K on it now.

Dang good truck though, aside from that.

capticeman
01-17-2011, 05:57 AM
I have 2000 5.4 with 107000 hard miles on it. I'm the second maybe third owner.
Plugs and coils hard to get at. been through a few coils, burning some oil. Still strong.
Agree on the warm up deal...
switching to 5w-30 royal purple this Spring. dealer puts 5w 20 in and seems to burn more.
(this is from a suggestion at a very serious F-150 HD board)
adding 4:10 rear end (Johnny lightning performance) and E fan this spring.
This is also a suggestion from some serious F-150 HD guys, should help mileage, towing and reliability.
what the heck, It's paid for and is 11 years old...

loganp
03-25-2011, 10:20 PM
I have an 01 f-150 5.4 4x4 with 170,000 good hard miles never had a problem with it except the alltenator went out about 20,000 miles ago.

knoppers
03-25-2011, 11:13 PM
my 04 5.4 blew after 87K, but I read that that motor in that year had issues. my 09 has been going strong. this is fords last chance, if this holds up, they are forgiven.

teamlund
03-26-2011, 02:28 AM
05 F150 5.4L V8.....I am the second owner. I purchased with 30,000 on it. It now has 75K and no problems what so ever. :laugh: This is my second F150 and I would buy another in a heart beat.

Dodge1
03-26-2011, 03:24 AM
My 06 5.4 has been stone cold reliable so far but I'm dreading the time when I have to have the sparkplugs replaced.

JKH
03-26-2011, 07:38 AM
99 F-150 bad head gasket and blown spark plug before 50,000, after that ran good until I got rid of it at 154,000. Really rattled when it was cold though

Look-A-Like
03-26-2011, 08:30 AM
My 06 5.4 has been stone cold reliable so far but I'm dreading the time when I have to have the sparkplugs replaced.

My 05 F150 with 87000 has been a great truck. My local dealer quoted me $425 and $50 dollars extra for every plug they break. Went to another shop in town and they quoted me $350. Two broken plugs and $425 later I drove her home.

You guys that are thinking about trading for 2011 F150 should really go out and drive the new EcoBoost. Was at the dealer yesterday and took one out for a spin. All I can say is the power is incredible I haven't been pushed back in the seat like that since my muscle car days. After driving it I know what engine my next truck will have.

ohiojmj
03-26-2011, 09:20 AM
Glad i wasn't the engineer that failed to ensure sufficient length of engagement to prevent thread shear failure due to highly predictable pressure loading. Then again, he could have gotten the wheel lug nut sizing job, yikes.

Bigstorm
03-26-2011, 10:22 AM
I bouth my 05 F150 with the 5.4 almost 2yrs ago. Got it with 47K now has 70K, only issue to date (knock on wood) was 2 injectors would drip fuel. Luckily I know someone that was able to help and Ford even paid for it. I did a lot of research before buying this truck and have personal experience with this engine - I work at a place with a fleet and most of the vehicles are ford with this motor. I have seen people go 20K between oil changes at work, granted they get in trouble, but to me it showed the abuse that this motor can take

Ford 5.4 Owner
03-26-2011, 12:34 PM
311,000 miles. 5.4 L. Super Duty. When she blows I'll let you know. Hasn't even started using oil yet. Slight rattle at start up. Been that way since 60,000 miles. I really don't know if it matters but Mobil 1 synthetic has been in her since 20,000 miles.

Sandusky
03-26-2011, 08:33 PM
Have a super duty with the 5.4, actual mileage is 678,345 4 cranks 6 head gaskets 14 blown plugs 8 pistons + water puimp. Runs fine

REW
03-26-2011, 08:49 PM
Here is a link for some of the specialized tools that would be a good idea to have on hand, if you want to change your own plugs.

Changing plugs is trivial, if you have the right tools. Get the right tools, pop out the old ones, and pop in the new ones.

http://www.youfixcars.com/ford-triton-spark-plug.html

Be sure to use the new replacement plugs, that have more threads on the plugs when you do it.

REW

fishman10
03-26-2011, 09:47 PM
my 5.4 is bulletproof!

fishman10
03-26-2011, 10:01 PM
i would also like to add, i work construction in the northwestern ontario area, and on a lot of the bigger job sites in canada. the typical job site is as follows, 300 trucks on site, 295 fords, 3 chev, 2 dodge. i am not bias one way or another, but this is fact. i have been working on the kapuskasing hydro project since december. their are no plug ins for any truck. we had weather in the low -40s and never an issue with the trucks starting. i talked to the mechanics and they had good luck with the fords. i guess the bottom line is they all break down and its a matter of buying a truck not built the morning after the christmas party. most trucks have the 5.4.

knoppers
03-26-2011, 10:44 PM
I got sold on fords when I was in canada. I had the 300 straight 6, it was everything of -40 or lower the night before we went home, with the truck sitting for a week. the owner of the place we were at said there was no possible way they would start, (hey had chevys) well it turned over very slow, but fired right up. no oil pressure and no internal lights worked, it was that cold. the other one in our group, same truck and motor also started right up, he couldn't beleive it. they were not plugged in either.

a few years later, one of us had a dodge truck, well that was a disaster.

5.4 450hp
07-20-2011, 11:22 PM
um you guys dont seem to know **** about these engines they are great power houses aslong as you fix the probs before they become probs-to start with use o-20 w oil full syn...replace the plugs with the new after market ones with better threads....
you will only have issues with the cam timing if you use thicker oil, you can also get a cam limeter placed in the gear to stop the amount of adjustments the ecu can make greatly reducing the chance of valve clash..
i have had mine for 6 years and besides going to mechanics who dont actually know **** ive had no probs...
ive had a flash tune and a stage three shift kit putting out 385hp at the rears on high octane fuels....

the tips
change plugs,if they fall in get a magnet extension tool and run it around the top of the chamber as they have skirted pistons so wat falls in there wont go down sied of the piston...if they de thread when removing them call a tool maker dont go to ford dealers there a fkn rip off they will try charge you for pulling the heads when infact wat they do is just what i told you to do!...call a tool maker!

decarb the engine every 5000kms so you dont have worry about losing compression

if you got the engine rattle this should be done also,decarb,thinner oils and retard timing by 1-3 degrees or use a higher octane rating fuel because these beast are dishned for torque they are over advanced!

good luck

Dodge1
07-21-2011, 05:49 AM
To the best of my knowledge:

The spark plug removal problems are associated with the 3V 5.4L that Ford put in their F-Series pickups in 2004 and then put in their Expeditions/Navigators in 2005.

yarcraft91
07-21-2011, 06:13 AM
change plugs,if they fall in get a magnet extension tool and run it around the top of the chamber as they have skirted pistons so wat falls in there wont go down sied of the piston...


Um- I know what a piston skirt is. What does that have to do with anything in this thread?

REW
07-21-2011, 12:17 PM
Bottom line - the engines are great engines, that have known serviceability issues.

Go ahead and buy the truck if you like it. (But, be sure that the right plugs are put in with the right tool using anti seize compound - Just before you buy the truck. If there are problems removing the plugs, you want the former owner to have the issue, rather than you as the new owner).

Then, make sure that you have the right tool to change the plugs after you buy the truck for your own peace of mind.



Run the right oil of the right type and viscosity and go enjoy your new purchase.

Be safe
REW

wallymn99
07-21-2011, 01:22 PM
Had an 06 with 100k and never had a plug issue. Actually i didn't think the issue started until after 2003. in fact i thought it started in 04 with the newly designed F150. I had a 2002 and never once did i have an issue with the plugs and it had 185k miles on it. Never changed them either.

Gibelde
07-21-2011, 03:46 PM
Get a Toyota and you won't have to worry about issues!!!!!!!!!!!!!!!!

Javelin360
07-21-2011, 04:02 PM
Get a Toyota and you won't have to worry about issues!!!!!!!!!!!!!!!!

Only one little issue depending on the year.... The frame rusting out...! :ooo:

1shooter
07-21-2011, 05:22 PM
I had a 2003 Expedition with the 5.4. At 90k replaced a coil pack, 96k another coil pack and at 105k another.

I asked the dealer what would be causing this and he said have you ever changed the plugs which the answer was no. He said there was a good chance that worn out plugs would cause this. I had the plugs replaced and they refunded me for last coil pack. He said they should of checked the plugs after the first coil pack went out.

I was pretty happy.

After that I drove it until it had a 175k on it. Engine worked great for me.

I had planned on getting that same engine in my new F150 but it was not an option.

I now have the ecoboost.

roadwarrior96
09-07-2012, 09:07 PM
I find myself on the unhappy side of this issue, apparently I have one of those set of heads that jettisons spark plugs. I was told to get ready to change the heads.

teamlund
09-08-2012, 06:01 AM
I had a 05 F150 that had 96K on it when i recently got rid of it. It was a reg can and since my wife is due anyday to have our first child I had to get a crew cab. Most of the miles on that F150 with a 5.4 were towing miles and it ran flawless other than an exhaust leak. Would buy another in a heart beat! Didnt do any work to it other than scheduled maint done by myself.

northernbite
09-08-2012, 06:57 AM
I had an 05 that I sold in 08 with 160,000 miles on it. F250 spark plugs $680, warped manifolds $600, and brakes locking up all the time endless $'s fixing them. Also tranmission that I forgot about, $1850. I was not happy, I use it for work and pleasure. 08 cheve 2500 that I traded and ordered a new one it has 167,000 miles. Changed plugs at 100,000, no problem, shocks and 2 sets of brakes. Comfort and gas mileage much better.
I was always a Ford guy but I have changed brands. None are perfect but I will have my 2nd cheve pickup as soon as it is built.

paul

Dodge1
09-08-2012, 07:53 AM
Iíve got a 06 with the 3 valve 5.4, which I bought new, and havenít had any problems what so ever; cross fingers and say prayers that continues for the next couple of years. Only negative that Iíve encountered so far is the gas mileage is rather dismal but hey itís not like I wasnít expecting that. However, Iím dreading the day that the spark plugs have to be replaced.

Out of all the vehicles that Iíve ever owned my fav had to be our 04 Avalanche. Since this is the last year that Chevy is going to offer the Avalanches, Iím seriously thinking about buying one. However, our Expo is in very good condition and the thought of selling it has me in a quandary.

Having said that, this http://www.washingtonpost.com/politics/federal_government/obama-admin-new-fuel-standards-would-double-average-gas-mileage-of-cars-light-trucks/2012/08/28/abfb1b92-f12b-11e1-b74c-84ed55e0300b_story.html would mean that the days of the big Suv/Truck V-8ís are numbered and something tells me that their replacements wonít be cheap, nor be able to tow upwards of ~ 4,500 lbs.

Dacotah Eye
09-08-2012, 07:04 PM
We have an 02 Expedition with the 5.4. The only problem we have had with the engine is a broken exhaust manifold bolt which is pretty normal for a 5.4. We also developed a miss while it was idling and had to replace a spark plug. Other than that it has been flawless for 82,000 miles.

Vikings Fan
09-08-2012, 07:41 PM
Get a Toyota and you won't have to worry about issues!!!!!!!!!!!!!!!!

I own a 1999 F-250 with 329,000 miles. Other than three sets of plugs as regular servicing no problems. So tell me again why should I buy Japanese crap? My buddies 2000 Toyota has rust in every corner. My Ford doesn't.

dirtman44
09-09-2012, 06:01 PM
I bought a '99 f-150 with the 5.4 9 years ago with 60,000 on it. Drove it till last spring. It had 296,000 on it when I sold it. I replaced two coil packs on it and that was it. The Guy I sold it to is still driving it with 323,000 with no problems. Keep up with maintenance and you should not have any major problems and should be able to get 250,000 out of it for sure.

Buck Snort
09-09-2012, 10:03 PM
Iíve got a 06 with the 3 valve 5.4, which I bought new, and havenít had any problems what so ever; cross fingers and say prayers that continues for the next couple of years. Only negative that Iíve encountered so far is the gas mileage is rather dismal but hey itís not like I wasnít expecting that. However, Iím dreading the day that the spark plugs have to be replaced.

.

Change them before they get corroded in there. Not a big deal if you do regular maintenance.

Remember the good old days when we used to change our plugs with 25-30K on them? They didn't get stuck then and yours won't either if change them before you start having issues with them.

Phil T
09-09-2012, 11:00 PM
Ask the shop foreman the price of a spark plug replacement (they're good for 100,000 miles). There were some model years that required either the engine be lowered or the cab lifted to access the two rear plugs.
I'm not a Ford guy, so don't know which years had (or still have) the extra large cowling that gets in the way.

wallymn99
09-10-2012, 07:56 AM
nothing really wrong with the 5.4 motor. I had an 06 for a while. the only knock i have on it is gas mileage.

eriksat1
09-10-2012, 08:07 AM
Same here, I got a 2004 f150 with a 5.4 Triton the motor runs strong no problems. I just hate the gas mileage also, so it sits parked unless I am towing the boat, ice fishing, hauling wood, or hunting.

ScottL
09-10-2012, 08:28 AM
Funny this thread came back up to the top last week. My 1999 F250 just pooped it's first plug last Friday. Odometer says 244,950. My local grease monkey fixed it for $100. It was back pulling a 5th wheel flatbed on Saturday.

Buck Snort
09-10-2012, 09:45 AM
[QUOTE=Phil T;1484836]There were some model years that required either the engine be lowered or the cab lifted to access the two rear plugs.
QUOTE]

:funnypost:


No there isn't. I've had both model F-150 with the differnt heads. 2 and 3 valve. I've been in the shop while they changed sets on both. No engine lowering or cab lifting. You've been drinking too much GM kool-aid my friend.

Yes, the plugs are rated for 100K. If you leave them in that long, that is when you get corrosion on the 3-valve heads and where the trouble starts. If you change them at 80-90K you'll most likely avoid that issue.

Buck Snort
09-10-2012, 09:47 AM
Funny this thread came back up to the top last week. My 1999 F250 just pooped it's first plug last Friday. Odometer says 244,950. My local grease monkey fixed it for $100. It was back pulling a 5th wheel flatbed on Saturday.

That's a good price for having to pull that cab off. LOL! :grin:

Fraid Knot
09-10-2012, 11:00 AM
Not that it matters....I had an 02 5.4 that I sold with 165K last year. In that time I had blown 3 plugs out of it. Each time it was under a heavy towing load. My buddy now drives it to work and around town with no towing and has had no issues. It still is a nice truck and would be a great daily driver.

Just had to get something bigger for towing. The Duramax is pretty nice.....

5.4 L. Owner
09-10-2012, 12:12 PM
Ask the shop foreman the price of a spark plug replacement (they're good for 100,000 miles). There were some model years that required either the engine be lowered or the cab lifted to access the two rear plugs.
I'm not a Ford guy, so don't know which years had (or still have) the extra large cowling that gets in the way.

What models? What years? Or are we just a Chevy, Dodge, Toyota boy talking out our pooper?
My last set of 8 plugs cost me $120.00 installed. They even vacumned out my truck for that price.

northernbite
09-10-2012, 12:33 PM
I believe after some of the problems everybody has learned to change these plugs sooner. I was one of those guys that had the 3 valve in my 2005 that changed plugs at about 105,000.Remember I drive 45000 a year so I'm on my secound truck since 2005 and just ordered another one. It took some doing, $680 worth. They do not need to lift cab though, I'm not sure where that came from. Truthfully the 5.4 is not enough motor in a extended cab, 8ft box F250.

Paul

Knutson21
09-10-2012, 12:41 PM
I have had a 2000, 2001, 2003, 2005 and now a 2009 and have never had a problem with my 5.4. I do admit that I always change my plugs between 75k and 80k miles so that I don't encounter a problem. The truck towes great. I would not hesitate to buy another 5.4. However I don't see that happening since they switched to the 5.0 or the Ecco Boost in the F-150's.

Buck Snort
09-10-2012, 12:59 PM
Truthfully the 5.4 is not enough motor in a extended cab, 8ft box F250.

Paul

No, it really isn't. I have one in my "hunting truck" a 2001 F-250 4x4, with 86K on the odo. It isn't built for speed that's for sure. Even with 4.10 gears it lacks the power of the the new 5.0l, by a long, long, shot.

Satchman
09-11-2012, 03:31 PM
Plugs breaking $400 to fix
coil packs failing
headgaskets leaking oil
bad fan clutches leading to water pump failure
Machineing issues at plant
$1200 for tune up
Motors blown at 87K
injectors dripping fuel

And you guys think these are good engines? I guess you guys keep the economy going. As for me I'll put 367k on my Tundra by December w/o a single issue

jolepotk@aol.comi
06-19-2013, 08:25 PM
I have had my f250 with 5.4 triton for 12 years got 367000 miles on the engine. Have change coil pack with plugs 2 and 6 three times . Still running strong. Good powerful engine.

magnumdeke
06-22-2013, 08:51 PM
Sorry guys, I cant help myself, I am the shop manager for a construction company with a 75 truck fleet, mixture of Ford,GM and Toyota. Ford 5.4 has been a good engine for us, yep has three issues we have fought, older 5.4 liked to spit out the third plug back on each side, approximately 20% of the 5.4's we have had have done this, fixed with a 15$ adapter from NAPA that allows use of the later 3v style plug. The 3v style plug does like to corrode or carbon up and the it breaks on removal, we short stroke the cahnge interval to avoid this. Coils go bad occasionally, we found that usually it was due to over gapped spark plugs, wore out making the coils job harder. Most common problem with 5.4 is the broken exaust manifold bolts, I have seen it so many times and done it that there are several local mechanics that will send their customer to me to do the job, I have gotton real good at welding the broken off bolt to build it up till I can weld a nut on with out damaging the alum, head. That is the worst problem, we have found it to be a good routine to just replace the commonly broken stud and nut before it happens, every 50K is what we do.
As far as Toyota fan boy is concerned, glad your happy,:boxing: we use our trucks, and the yotas we have are now giving us the dreaded secondary air injection pump issue, located under the intake these pumps are failing like clock work, 10 hrs labor supposedly (way easy to beat the time) and 600 to 1000$ in parts. Water pump failure has been common as well as radiator tanks. OH ya, had several rear diff sets and front diff bearings.
Ford and Yota compromise most of our gas burning rigs, the rest are diesel which is where GM comes in. All in all they all have pattern problems, those Ford 5.4 have been good to us, and many still continue to be with 300k+ of steel crew monkeys whoppin on em. Dont be scared of a 5.4

Side note, just had a Ecoboost and a non ecoboost in for PM service, side by side fuel monitor #'s showed a 2mph avg. difference in favor of the ecoboost (two pretty well matched drivers and uses) So is it worth the difference in cash up front for the ecoboost?????:stirthepot:

cal74
06-23-2013, 07:42 AM
I don't recall, but I believe it was the '97 to early 2000's that had the blown plug issue due to the short threads.

Later years they switched to the stupid 2 piece plug that would break.

I had a '98 5.4 that was a pretty good truck, never had a problem with plugs but I sold it before they needed to be changed and never dealt with that. The passenger side manifold though was a different issue and was/is a known issue for having the studs rot off.

I was quoted around 450 or so to change it out, but ended up tackling the job myself. I was able to remove 3-4 with a socket, had to cut the rest off with a dremel and had a heck of a time getting the last couple out.

Was just about ready to give up and finally got them out with heat/cold cycles and a lot of PB.

Would have been a heck of a lot easier with a lift

griffsmom
06-26-2013, 09:25 AM
Well, I must be one of the odd ones on here, we have a 2000 F-250 with the 5.4 and I think we are now on our fourth plug to blow out, and also have replaced numerous coil packs. Has about 150M on it, now its sitting waiting to have a head replaced. Our last plug blew just sitting at an idle, of course 5 hours from home. My brother in law is a mechanic so he plugged the hole and also disconnected the other plug, so we ran a 6 cylinder all the way back home, my gosh is was so loud, I was waiting to get a ticket from the noise police when going through some towns. Needless to say after dealing with this issue, I jumped ship.

peri
01-23-2014, 02:32 PM
i'm looking at buying a 2007 f250 super duty crew fX4 with 147,000 km. has anyone had trouble with the motor that the earlier years had? any other comments?

Hat Trick
01-23-2014, 07:50 PM
i'm looking at buying a 2007 f250 super duty crew fX4 with 147,000 km. has anyone had trouble with the motor that the earlier years had? any other comments?

It's a bit different than the early ones. The plugs are the main issue. Make sure they're changed and you should be fine. You're getting a good truck if you ask me.

check08
01-23-2014, 10:22 PM
I didnt read the whole thread but cam phazers are known to go bad on a small percentage of the 5.4 s

dirty underpants
01-24-2014, 08:14 AM
Ive got 2004 F250 crew cab with 150k miles. Routine maintenance, no problems. I'm driving it till it falls apart, putting it back together and running it some more.

pjshorthorn
01-25-2014, 08:51 AM
'02 F150- just passed 200,000 miles with just 2 coil packs and a bad clutch fan (which resulted in 2 water pumps in the first 1000 miles)-since purchasing new. Believe it or not-I like pulling my boat ( Crestliner SuperHawk 1800) better with my '02 F150 better than pulling it with my '05 F250!
Walteye

X2 '02 F-150 with 222,000 miles on it. After the 2nd coil replacement, put in a new set of plugs and no further issues with coils going bad...so far :happy:. No other significant repairs at all.... I'm thinking 300,000 miles is achievable in my case as a significant portion of my mileage was highway.

JKH
01-25-2014, 09:03 AM
I had a 99. At 28,000 miles the head gasket had to be replaced and at 36,000 miles it blew out a spark plug.Head gasket Ford fixed. Spark plug thankfully I had an extended warranty as the bill was over $1200.00. After that I drove it trouble free to 143,000 when I traded it in. I now love my GMC but still miss the looks of the Ford

JAY221
01-25-2014, 02:15 PM
Got an 07 Expedition and had heard the stories about getting the plugs out. Had a variable cam timing solenoid go bad which resulted in the passenger side cam be retarded. To me it sounded like a plug had come apart rattling real bad like to low of octane gas. So, I order the tool to get the broken plug out but none were broke & they all came out easily. Then I changed the solenoid after pulling code & all was well. Anybody that can remove a valve cover can do this job. Later, Jay