13 problems related to engine clicking and tapping noises have been reported for the 1999 Ford Expedition.
After picking up my laundry, I headed to staples while driving 45 mph I heard a loud boom and very strong smell of gas so I pulled over turned off truck. I started again and it was a loud popping sound. I got home checked truck engine. I noticed my coil pack out and spark plug attached to it. I tried to put spark plug but the threads were all striped. I checked the inside of cylinder head could not see tried to put in a new spark plug but I can turn and turn and the spark plug would not screw in. This is dangerous because when spark plug blows out you have all the odor of gas coming out and that one spark can cause engine to blow up. I contacted Ford all they took was my VIN number and name never heard from them again.
After picking up laundry, on my way to staples all of the sudden I heard a loud pop, then a strong smell of gas. I pulled over, turned off truck. Turned it back on then heard a loud popping sound. Got the truck home opened the hood and noticed spark plug out of engine attached to a damaged coil. I tried to put in new spark plug but it would not screw in, the threads in cylinder head were stripped. Found out it would cost a lot of money to get cylinder head rethreaded. Wrote to Ford corporate they asked me for VIN name and basic info. I found out that this is common in triton engines. It is a designer flaw in Ford. Ford knew about it for years now. Spark plug blows out for no reason. After spark plug pops out a strong smell of gas comes out. This could cause engine to explode. This happens in Ford triton engines. This is unsafe.
While moving accross country my 1999 Ford Expedition ejected the number 3 spark plug. This situation placed my family in harm's way as it occured on the interstate and was quite startling. The service rep was able to tell me what was wrong with my vehicle as soon as told him the make and model. The repair cost is significant, but the potential for an under hood fire caused by the fuel vapors being ignited by the ejected plug is of grave concern. Ford is keenly aware of the problem and has designed a replacement head for the vehicle, but refuses to do the honorable thing and replace it at their expense. They instead choose to profit from their customers by charging them for the repair or replacement of the cylinder heads. I find it predatorial that a car company would make a faulty product and then profit from the repair of said product. This could start a new precident by signaling to other car companies that if you sell a defective vehicle, you can make money on the backside by charging for the repair or replacement of that part. The safety concerns that are associated with this failure are related to the loud and sudden popping sound when the plug ejects, this could easily distract a driver and could potentially lead to a fatal accident. The fuel vapors could be ignited shortly after the plug ejects and could also cause the driver to lose control of the vehicle. Considering the Expedition carries up to 9 people the risk of a trafic fatality is increased greatly. Please hold Ford accountable for their error and lets hope no one gets hurt or killed until then.
Two weeks prior to this failure, there was a distinct ticking noise that changed with rpm. Sounded like a collapsed lifter. While returning home on memorial day 2008, experienced a loud popping noise, followed by continued whoosing noise and poor engine performance. After inspecting engine, noticed #7 spark plug had come out and broken the coil-on-plug coil unit. Failure occurred 2 blocks from my home, so I limped it home. Have not had it repaired yet.
The contact owns a 1999 Ford Expedition. While driving 65 mph, the contact heard a loud popping sound under the hood. The vehicle decelerated to 0 and would not accelerate. The vehicle was towed to a dealer. The dealer stated that the spark plug popped out and stripped the engine head. One of the engine heads has to be replaced. The current and failure mileages were 70,306. Updated 02/15/08.
The contact owns a 1999 Ford Expedition. The contact stated that he heard a loud popping sound when the vehicle was started. The vehicle was towed to the dealer who stated that there is a defect with the cylinder head, which caused the spark plug to disengage. The current and failure mileages were 86,800.
Loud pop then loss of vehicle power, continual popping sounds until I stopped engine. Spark plug was ejected from engine. I believe this investigation should be reopened as this should be a defect recall .
1999 Ford Expedition, 88k miles, spark plug ejected from passenger side of engine. This occurred in heavy traffic while in left lane of smoketown road in prince william county, virginia. The vehicle stalled after I let off the gas pedal right after a loud bang and popping sound was heard in engine. I was able to restart vehicle, but had to keep the rpm's up to keep from stalling. After cutting off several cars in center and right lane, the vehicle was pulled into a parking lot on right side of road. I detected a strong smell of gasoline present when hood was raised. Not once did the "check engine" light come on; unlike all the other times it came on when nothing was wrong with the truck. The vehicle was towed to a Ford dealer and a $3400 head replacement performed because head was ruined by stripped spark plug ejecting. Upon checking internet, I found that this is an ongoing increasing problem. It appears that an inquiry done by your agency concluded in January of 2006 that this is a rarely occurring incident of little to no danger. I beg to differ. A simple google query will show thousands if not tens of thousands of complaints regarding Ford triton engine spark plug problems posted on various message boards. It is a matter of time before someone gets hurt or killed either directly or indirectly from this obvious problem. I'm just glad I was alone driving and not my wife and children. My wife would have remained in the stalled vehicle while sitting in the passing lane. Considering the enormous number of potentially affected vehicle this issue involves, I will also be bringing this matter to the attention of every elected official I can send an email to.
For the second time in 6 months I had an engine spark plug ejection in my 1999 Expedition. The spark plug detached from the cylinder and was ejected from the engine. I heard a loud pop while driving, the vehicle followed by a loud, repetitive clicking or popping sound. I also lost some power while driving, the vehicle did not stall. I did smell gas when the incident occurred. I was able to slowly drive the vehicle to the repair shop.
Approximately at 8 am, my wife was driving to work when she heard a loud bang under the hood of the car. She was driving a 1999 Ford Expedition. The engine started making a very loud popping noise. After arriving and starting the car to hear what was going on, I knew what the problem was. 5 years ago I drove a 1999 f250 Ford with a v10 and it did the same thing. The local dealership agreed a spark plug had blown out of the engine on the Expedition on the #3 cylinder. They repaired it by putting a plug insert (heli-coil) in. They put the insert in while the head was still on the vehicle. Now three weeks later the rods on #3 and #7 pistons are bent and the vehicle is inoperable. The dealership only option to us was to replace the engine at a cost of nearly $4,500.
The contact owns a 1999 Ford Expedition. In 2005, while driving 55 mph, the contact heard a popping sound and stopped the vehicle. He noticed that the spark plug had come through the engine. A month later, the failure recurred. The purchase and incident dates were unknown. The current mileage is 130,000 and failure mileage was 90,000.
1999 Ford Expedition 5. 4l 4wd driving down road and spark plug shot out of the head. Causing a loud popping noise and bad idle. Replaced sparkplug and had heli-coil installed. Two weeks later, another spark plug shot out of the other side of the head.
Light came on the dashboard indicating there wa sno oil inside of vehicle, and it started making clunking noise. Dealership was aware of problem.
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