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How bad is the Ford 5.4 Triton engine ? - Walleye Message Central
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  #1  
Old 11-26-2009, 07:11 AM
GR GR is offline
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Default How bad is the Ford 5.4 Triton engine ?

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
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  #2  
Old 11-26-2009, 07:30 AM
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Default 5.4 Liter Ford V-8 Plug Problems

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.
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Old 11-26-2009, 08:59 AM
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KHedquist KHedquist is offline
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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.
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Old 11-27-2009, 10:07 AM
buffy
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Default ford 5.4 engine

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.
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Old 11-27-2009, 05:51 PM
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Manxfishing Manxfishing is offline
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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

Last edited by Manxfishing; 11-27-2009 at 05:54 PM.
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Old 11-27-2009, 10:09 PM
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phowler phowler is offline
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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.
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  #7  
Old 11-28-2009, 11:38 AM
OldDawg OldDawg is offline
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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.
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Old 11-28-2009, 02:29 PM
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walteye walteye is offline
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'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
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Old 11-28-2009, 07:20 PM
rebelrn2001 rebelrn2001 is offline
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Default 5.4 L Expeditions

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).
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Old 11-29-2009, 07:58 AM
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KHedquist KHedquist is offline
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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
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