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pretty bad
Typical Repair Cost:
Average Mileage:
146,463 miles
Total Complaints:
30 complaints

Most Common Solutions:

  1. recall the engine! it's not safe! (12 reports)
  2. replaced spark plug and coil (9 reports)
  3. installed heli-coil, replaced all plugs & timing chain brakt (4 reports)
  4. fix kit from napa auto parts (2 reports)
  5. not sure (2 reports)
  6. heads rebuild with new ss threads (1 reports)
1999 Ford Expedition engine problems

engine problem

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1999 Ford Expedition Owner Comments (Page 1 of 2)

problem #30

Feb 012015

Expedition Eddie Bauer 5.4L

  • Automatic transmission
  • 183,000 miles


This is the first time the spark plug blew out but the 4th time the coil has gone bad. So far between the other 3 coils and this blow out, I have spent over $3,600 dollars on repairs that FORD should have recalled and repaired on all these Tritian engines. It's not like this has been isolated instances nor is it only happening on Expeditions. Not only is is costly it scares it could give someone a heart attack with the explosion of a spark plug blowing out of your engine and could catch fire and by what I have read the Heliacoil seal may not be the end of the fix. Ford needs to step up and take responsibility for their vehicles after all Ford trucks are rated number one in their class and Ford should stand behind their products and stop trying to blame consumers for torching the plug too tight. Ford does my tune ups so if they put the plus in too tight they are to blame. So I have had 4 repaired and have another 4 more to blow before that is the possible end of this issue.

Step up Ford and take responsibility for your problems! This certainly will effect my decision to buy another Ford Truck. Might have to go to GMC.

- , Severn, MD, USA

problem #29

Jan 052014

Expedition Eddie Bauer 5.4L Triton

  • Automatic transmission
  • 220,000 miles

This is the 2nd time this has happened in this vehicle. The 1st time for this used engine that I replaced. After sitting with a blown engine for 3 years, I had to replace the engine back in November 2013. It blew this plug after Christmas with even very limited snow driving only.

I haven't had the money yet to fix it this time. This obviously should have been recalled a long, long time ago. This is by far the worst engine in a vehicle that I have ever had the misfortune of owning.

- , Bates City, MO, USA

problem #28

Dec 272014

Expedition Eddie Bauer 5.4L V8

  • Automatic transmission
  • 130,000 miles

My daughter was driving our 1999 Ford Expedition when it started making a loud noise (sounded awful) and she had to pull over on the freeway. I drove over to help her and discovered it had blown out a spark plug. Never head of such a thing until I read all of the problems reported on this site. This will likely be a very expensive repair for an older vehicle in otherwise good shape. Very disappointed in Ford for not recalling to cover this problem. My last Ford.

- , Wodinville, WA, USA

problem #27

Aug 012014

Expedition Eddie Bauer V8

  • Automatic transmission
  • 120,000 miles


This is a terrible design by Ford. I've had 3 blow out and now one can not be fixed with a heli-coil, so now I'm going to have to spend 50% of vehicles value to fix a problem that Ford should fix. We need a recall for the faulty installation of spark plugs in 1999 Ford Expeditions.

- , Elgin, IL, USA

problem #26

Sep 012014

Expedition 5.4L Triton

  • Automatic transmission
  • 220,000 miles

This is first complaint ... of many to come. A fire resulted. Burning myself to save the truck after spark plug ejected. Bought the replacement plugs with self tapping thread sheath... they blew out... Bought the helicoils.. they blew out... tried high temp repair putty. Worked for 1 day.. total cost in lost work , repairs, time and pain...I'm a Ford guy... My 87 daily driver I expect to work on.. I don't expect to have to have someone follow me picking up spark plugs and carrying a fire extinguisher. Recall this engineering paper weight.

- , Sparta, NJ, USA

problem #25

Jul 152014

Expedition 5.4L

  • Automatic transmission
  • 177,000 miles

I have had my coil packs changed 3 times All of them are different. I know what is going to happen when the ford starts idling rough, so I take it to a garage and have it put on a monitor and yeap it is another coil pack. The different garages I have been to know this is a popular thing that happens to these fords, I have been traveling 2 times when this has happened so, it is different garages that are telling me the same problem. One coil pack my son put in and even the parts person in the auto store this is a known problem. Ford should recall and fix the problem because everyone in this field seems to know the problem.

- , Mechanicsburg, PA, USA

problem #24

Jul 182014

Expedition XLT 5.4L V8

  • Automatic transmission
  • 146,752 miles


Well, lets start with that I love my 1999 Expedition 4x4. That being said, one day after almost perfect reliability for over 80k miles, it blew a spark plug out of the socket. I had maintained the truck at a local mechanic. It would be hard to pay dealer prices on an old Ford all the time.

- , Longmont, CO, USA

problem #23

Feb 212014

Expedition Eddie Bauer 5.4L Triton

  • Automatic transmission
  • 143,333 miles

THE FORD COMPANY SHOULD RECALL THESE ENGINES AND FIX THIS PROBLEM!!! This is an inconvenience and a VERY expensive problem to fix, and we should NOT have to have this happen!! SP RECALL THE ENGINE FORD!!! You have some VERY angry customers and ones who WILL NEVER buy another FORD AGAIN!!!!

- , Corvallis, MT, USA

problem #22

Nov 172013

Expedition 5.4L

  • Automatic transmission
  • 130,000 miles

I bought my truck in August, 2013. This is the 2nd time a spark plug blew! This sucks! With all the complaints out there about this problem, Ford really needs to do a recall. My truck is at the shop now, not sure how much they will suck out of me.

- , Carneys Point, NJ, USA

problem #21

Feb 272013

Expedition XLT 5.4L V8

  • Automatic transmission
  • 81,768 miles

Second TIME SAME CYLINDER NO COMPENSATION 3600.00 for NEW CYLINDER HEAD! NO CHOICE -but to PAY and complain right HERE! However, there is power in numbers - so IF THIS HAPPENED TO YOU PLEASE sign in - and COMPLAIN !

- , Renton, WA, USA

problem #20

Apr 172009

Expedition XLT 5.4L V8

  • Automatic transmission
  • 62,979 miles


the cost of this fix should have been around 700.00 (or under) for a HELICOIL - they (FORD DEALERSHIP) did the "while we are in there" approach and charged for everything - without asking - just "we have to" 1973.86 (almost triple)

Now 3-1/2 years later the same cylinder (I'm guessing #3) blows the spark plug - stripping the threads again - and I am responsible for the repair (3600.00 +tax) ABOUT $4000.00 for a new cylinder head and "while we are in there" Please post yours also so we get SOMETHING out of this - Thanks

- , Renton, WA, USA

problem #19

Mar 202013

Expedition Eddie Bauer 5 . 4

  • Automatic transmission
  • 135,000 miles

so i buy this used ford and two spark plugs blow out on me its a 1999 ford expedition and i want this recalled and for me to be reimbursed for the problem.

- , Prescott, AZ, USA

problem #18

Sep 012012

Expedition Leather 5.4L

  • Automatic transmission
  • 141,000 miles

Ford should be ashamed to know of this issue and to do nothing about it!

- , Greeneville, TN, USA

problem #17

Feb 192012

Expedition 5.4L V8

  • Automatic transmission
  • 130,000 miles

Had car in dealership exactly four months ago- had it in for a crank case problem / transmission slipping. $1,800.00 later, (and when truck was returned to us) engine was running very rough. Not even out of the dealers driveway, we returned the truck because the engine light turned on (this light has never come on since we bought the truck). Dealer diagnosed the problem as #3 spark plug defective and wanted $300.00 more to repair. We paid half after extensive arguing. Spark plug was repaired- engine light still on because dealer claimed engine needed tune up. Drove until four months when spark plug blew out of engine while on highway. When on side of road and hood open, started engine and fireball shot out of front right side of engine (where spark plug was coil was supposed to be). Shut engine off, paid $250.00 for towing. Never moved car since.....

- , Bridgeport, CT, USA

problem #16

Jan 172012

Expedition Eddie Bauer V8

  • Automatic transmission
  • 103,400 miles

OK - in two weeks, I have had this car throw two different spark plugs. Plugs are original - engine has never been tuned.

- , Great Falls, VA, USA

problem #15

Jan 092012

Expedition Eddie Bauer V8

  • Automatic transmission
  • 103,000 miles

Horribly disappointed - thought Ford engines were great.

- , Great Falls, VA, USA

problem #14

Jan 052012

Expedition Eddie Bauer 5.4L V8

  • Automatic transmission
  • 101,013 miles

I have a 1999 Ford Expedition Eddie Bauer Edition, While driving with my wife, all of sudden I heard this loud pop sound came from the engine, followed by loud rat-tat-tat

sound. got so scared i immediately pulled over, investigate what happen i notice the spark cable was hanging and split in 3 pieces and the spark plug was just sitting on top of the engine, it was very upsetting because i never heard such a thing, i had it towed to local Ford dealer and the service manager told me that this a common problem on Ford, that the spark plug will blow out, due to ford's poor engine design. While ford is blaming

the dealership technician from over torquing of the new plugs, the dealership on the other hand i s blaming Ford Company for their poor engine design, for the mean time we are the one who got stock paying for this outrageous charges. This repair had cost me $2644.53, i know others pay way more than this. Ford Company should realized that this problem is due to engine poor design, with so many complaint documented all over the Nation, Ford company should stop blaming others, and the Federal Government should step up to help the consumer resolved this problem, because this could be an emission problem.

- , Lakewood, WA, USA

problem #13

Sep 242011

Expedition Eddie Bauer 5.4L

  • Automatic transmission
  • 160,000 miles

Once again I have had another spark plug ejected from my cylinder head. I am furious that Ford knows they have a problem, but because of the expense involved in replacing both heads they choose to let consumers bear the burden of their poor design. This is unconscionable situation and a telling position which shows how committed Ford is to their customers.

- , Randle, WA, USA

problem #12

Aug 282011

Expedition XLT 5.4L

  • Automatic transmission
  • 158,000 miles

This was the first I'd heard of this problem. Decided to try and trade it in and another plug blew out. It's in the shop again! This time I'm selling it fast on Craigslist!

- , Blacklick, OH, USA

problem #11

Oct 072011

Expedition XLT 5.4L

  • Automatic transmission
  • 162,000 miles

2nd plug to blow out of this engine.

Ford needs to do something about these known issues and stop sitting on their hands!

- , Blacklick, OH, USA

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