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hardly worth mentioning
Crashes / Fires:
0 / 7
Injuries / Deaths:
0 / 0
Average Mileage:
85,471 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2001 Ford F-150 engine problems

engine problem

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2001 Ford F-150 Owner Comments (Page 2 of 6)

« Read the previous 20 complaints

problem #85

Jul 152010


  • 158,000 miles


The contact owns a 2001 Ford F150. The contact stated the vehicle was parked in front of his residence and caught on fire. The fire department was able to extinguish the fire. A fire report was available. The vehicle was destroyed. The dealer advised that the vehicle was not under recall and did not provide any assistance. The failure and current mileages were 158,000.

- Tampa, FL, USA

problem #84

Jul 092010

F-150 4WD 8-cyl

  • 92,752 miles
Spark plug blow out on my 2001 Ford F-150 expensive repair to replace spark plugs. Dealer wants me to purchase a new cylinder head.

- Blakesburg, IA, USA

problem #83

Jun 102010


  • 147,000 miles
Spark plug #3 has blown out of cylinder head on two occasions. This second occurrence damaged the threads requiring repair with a helicoil kit. This defective head can cause fire hazard.

- Belvidere, NJ, USA

problem #82

May 152010


  • 202,000 miles


2001 Ford F150 5.4L cracked intake manifold. Cranked truck and saw antifreeze leaking from passenger side of intake. Getting motor fixed and have verified it to be cracked manifold.

- Olive Branch, MS, USA

problem #81

Mar 242010


  • 85,000 miles
I own a 2001 Ford F150 with a 5-4 Triton motor.had a spark plug blowout while on the freeway, it occured on number 3 cylinder and 2 more that were loose on the engine.mechanic repaired by installing an insert do to stripped out threads.also when the plug blew out it damaged the coil pack.I saved the parts that were replaced.

- Deer Park, TX, USA

problem #80

Oct 222000


  • 56,000 miles
The contact owns a 2001 Ford F150 lightning sbt. The contact stated that the spark plugs are blown from the engine. While driving 45 mph the sparks plug blew out while the engine was running. The vehicle was towed to a repair shop where they replaced the spark plugs. The manufacturer was called and informed him to call NHTSA to file a complaint. The failure mileage was 56,000.

- Hillsboro, OR, USA

problem #79

Feb 052010


  • 194,503 miles


I have a 2001 Ford F-150 with 195,000 miles on it, .. I am the third owner and have not had any problems with it until now.. I was driving down the road and suddenly heard a loud disturbing sound coming from the engine compartment, .. I pulled over and shut the truck off immediately, .. I opened the hood and did not see anything wrong, so I started it back up and the same noise could be heard, .. I looked under the hood and could see a spark by where a spark plug would be, .. I shut the truck off and investigated a little bit, .. I noticed that the coil was off and the spark plug was laying by the valve cover, ... I had to call my brother to haul the truck home since I knew that driving it like that could cause engine problems, .. after doing a little research about this problem, I found that spark plugs popping out of their holes is kind of a common thing for Ford Triton engines. Why has this issue not been addressed by Ford Motor Company yet, ... I have been told that they have known about tit for quit some time and haven't been forced to fix the problem so they probably wont send out a recall for this... what can B E done to fix this problem !!!

- Wabasha, MN, USA

problem #78

Jan 262010


  • 118,000 miles
My 2001 Ford F-150 truck had one of the sparkplugs eject from the cylinder head. The vehicle has approximately 118,000 miles. My concern is that this could have ignited into a fire since gas fumes are coming out of the sparkplug opening.

- Villa Park, CA, USA

problem #77

Dec 182000


  • 158,000 miles
Spark plug blown out of engine and stripped threads in engine head. Due to poor engineering of original thread length. Short thread length in aluminum block will not hold compression pressures over time. I must either repair the head or replace the head with newer design with threads of proper length. Has not been fixed yet.

- Owasso, OK, USA

problem #76

Nov 282009


  • 139,000 miles
The #3 cylinder spark plug blew out on my 2001 Ford F-150 lariat. My truck has the 5.4 liter engine and it has 139,000 miles. I was driving approximately 15 mph and the spark plug blew out. There was a loud "popping" noise from the engine compartment. Upon investigation I found the #3 cylinder spark plug had blown out and also destroyed the coil on top of the spark plug.

- Rochester Mills, PA, USA

problem #75

Nov 172009


  • miles


Blown spark plug from 2001 F-150 (lightning) note: This is the third blown spark plug. The first time Ford replaced the entire head (under warranty). The next two were out of my pocket (at $1K each).

- Centreville, VA, USA

problem #74

Oct 302009


  • 74,211 miles
My Ford F-150 just blew out the 2nd spark plug in a month. Truck has 74,000 miles and the repair isn't covered by Ford. Original plugs, so can't be due to wrong torque specs. Luckily it happened as I pulled into my driveway, and I was able to shut it down before it caught fire.

- Christiana, PA, USA

problem #73

Jan 082009


  • 150,000 miles
My wife and I were driving to Florida from North Carolina. I have a 2001 Ford F150 5.4 Triton. A loud pop, and the spark plug blew out of the head, taking the coil with it. Very expensive repair. This is a widely reported problem with this model and is an obvious manufacturer defect due to insufficient thread depth in the head.

- Hickory, NC, USA

problem #72

Aug 282009


  • 151,000 miles
I have a 2001 Ford F-150 XLT 4.6L with 151,000 miles. A few days ago, I was driving on interstate 64 and heard a loud pop from the engine area. The engine started to miss violently. I pulled to the side of the road, raised the hood and noticed the spark plug had blown out. Of course, I could not drive the truck anywhere so my 10 year old son and I had to wait for an hour for a tow truck. After some research, I realize that this has happened to thousands of people. Ford seems to blame incorrect torquing of the spark plugs, but most people blame a poor design in the small quantity of threads holding the spark plug. I can say that no one has touched the plugs in this truck except for a Ford dealership when the plugs were changed at 75,000 miles. I am now stuck with an enormous repair bill of over $2000 for installation of a new head and coil pack (not to mention a tow bill and the stress of being stranded on the interstate and not owning a functional vehicle). If this is a design issue, then Ford needs to at least make the repairs affordable.

- Ashland, KY, USA

problem #71

Jan 252009

F-150 8-cyl

  • 122,000 miles
I have a Ford F-150 2001 with Triton 5.4 V8 I started my truck and heard a loud pop and then what sounded like a very bad exhaust leak. Come to find out the back sparkplug on passenger side blew out. I had to have a new coil new plug and helicoil installed.

- Huntington, IN, USA

problem #70

May 012009


  • miles
2001 Ford F150 spark plug blowout has left me without a vehicle and out of money now. According to my research this is a common problem among all Ford V8's and V10's from 1999 to 2002. The problem is due to lack of threads in the aluminum heads (only four theads), and has resulted in several fires and extensive property damage. Apparently all attempts at a recall and class action law suit have been met with relative disregard. Despite the fact that Ford redesigned their heads after 2002 to correct this problem they still refuse any assistance to customers who suffer due to their design flaw. Apparently someone will have to die from the engine fire before anything will be done. And eventually someone will die, if they haven't already. Perhaps a death due to this problem might force legal action. I'm currently looking at over $3000 worth of repair cost, the vehicle cannot currently be driven due to risk of fire. Please refer to for a list of thousands of individuals who have suffered because of Ford's design flaw.

- Woodward, OK, USA

problem #69

May 092009


  • 125,000 miles
The contact owns a 2001 Ford F-150. The contact stated that his vehicle had been parked at his residence for three days when it caught fire. The fire originated under the hood of the vehicle. There were no injuries. The vehicle was attached to a boat, which was also damaged in the fire. The fire department extinguished the fire and filed a report. The contact was advised to call the Ford manufacturer. The VIN was unknown. The failure mileage was 125,000.

- Mt. Olive, NC, USA

problem #68

Mar 052009

F-150 8-cyl

  • 190,000 miles
I have 2001 Ford F150. Triton V8 engine. Driving under very light load, going 35 mph the number 1 cylinder spark plug shot out and caused damage to the threads.

- Meridian, MS, USA

problem #67

Feb 112009


  • 160,000 miles
Spark plug blowout Ford 4.6 engine and coil damage.

- Ravena, NY, USA

problem #66

Jan 022009


  • 71,000 miles
The contact owns a 2001 Ford F-150. While driving 15 mph, the contact noticed that his vehicle would drive extremely rough. He took the vehicle to a local repair shop and they stated that the intake manifold and passenger side bolts in the engine had excessive rust. In addition, the intake manifold needed to be replaced at the cost of $600. The vehicle has not been repaired. The failure and current mileages were 71,000.

- Waldorf, MD, USA

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