1998 Ford F-150: sudden loss of power

Filed Feb 4, 2016 · Engine · 60,000 miles · TX

Tl* the contact owns a 1998 ford f-150. While driving 30 MPH, the vehicle lost power and the check engine warning light illuminated. The failure recurred on numerous occasions. The vehicle was taken to an independent mechanic who diagnosed that the passenger side cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 60,000.

Filed Sep 6, 2013 · Engine · 154,000 miles · CT

Driving the vehicle at a normal speed I started to lose power and the truck began to misfire.the problem had been known to ford, because our mechanic received an e-mail bulletin from ford directly. Which stated the problems with the f-150. I have copies of this bulletin. Needless to say I was fortunate that this did not occur on the highway because my son and I would have been killed. Because the truck just lost total power.

Filed May 26, 2013 · Engine · 394,056 miles · TX

I was driving, and the truck started losing power, and sputtering, I finally got it to a mechanic and he found that there were 3 cracked coil pack assemblies. These were replaced and it runs fine. This could have been a bad deal if I had been in a situation pulling into traffic, crossing a rr track or something similar. This idea of individual coils on each spark plug is not a good idea, and dangerous. I realize there are a lot of miles on my truck, but this could happen at any time.

Filed Dec 3, 2012 · Engine · 153,000 miles · CT

Tl* the contact owns a 1998 ford f150. The contact stated that while driving 35 MPH, the vehicle started to misfire and a loss of power to the accelerator pedal. The vehicle was taken to a mechanic who advised that water had entered where the spark plugs were located. The contact was advised that the spark plugs would need to be replaced. The vehicle was repaired. The manufacturer was notified who advised the contact that there were no recalls for the failure and offered no further assistance. The VIN was unknown. The failure mileage was 153,000.

Filed Feb 4, 2010 · Engine · 71,506 miles · PA

New spark plugs were installed at 70,000 miles on my 1998 ford f150. A few weeks later a spark plug (cylinder #4) was ejected from its threads, causing gas vapors to fill the engine compartment and vehicle cabin. After the loss of power and the need to replace the spark plug (the spark plug seemed to be reinserted without problems), it seemed to run fine until 5 weeks later the engine lost power and another miss fire was recorded by the code reader. Now the check engine light remains on (code reader show cylinder #4 miss fire) with a loss of power. Now a helicoil kit will have to be install at a cost over $117. If the helicoil kit does not work, the vehicle may have to be sold for at fraction of what its value would be without the forementioned problems, otherwise it could be used as my regular driver- thanks ford!

Filed Mar 20, 2008 · Engine · 95,000 miles · NE

My 1998 ford f150 truck ejected a spark plug while driving at low RPM's. Numerous websites have stated the head design is flawed and only allows 3 threads to catch. Upon ejection of the spark plug the threads on the engine head are removed. Ford has a new designed aluminum head to omit the problem. Why hasn't it been made available through a recall? Not only is a safety issue, driving down the highway and suddenly losing power, but a bad design.

Filed Feb 6, 2005 · Electrical, Engine · OK

My 1998 ford f150 4x4 blew 3 coils within 3 months of each other, culminating with the ignition coil in august 2004. I contacted ford and was told I was being put on a "recall list" in case others had complaints. When the coils blow, there is a horrible noise from the engine and an immediate loss of power due to the spark plug no longer igniting that cylinder for the engine to run off of. Luckily, I was able to pull over to the side of the road and call a wrecker without incident. All three coils were replaced and I still have receipts. I traded the vehicle in due to the numerous problems it began having.

Filed Aug 5, 1999 · Brakes · TN

While driving on a wet surface and applying the brakes, the vehicle feels as if it has lost power in the brakes. Then the brakes lock up and the vehicle skids. Dealer can't duplicate the problem.