1999 Ford Expedition: misfire or rough idle

Filed Jul 30, 2015 · Acceleration, Engine · 165,000 miles · KY

My expedition started acting like it was starving for fuel misfiring loss of power and there's a ticking sound coning from under the dash board the door lock unlock the lights flicker and horn beeps by its self I parked it and a couple days later it wouldnt it trying to crank but its sound I dont believe battery is dead if it was then lights wouldn't come on now and again also when I use my key ring lock to lock the door there's a clunk cluck sound I've spent a lot of money trying to find out what's wrong with lamont that's my expeditions name and nobody knows last repair shop had it 9 days total on the 7th day I called them they said they had no idea and on the 9th I went in and they said I needed a new motor costing 2600 and charging me 220 to tell me that. The shop before that cost me 350 saying the truck itself were the plugs go in was stripped and they needed a special tool. Any how I believe it would be a matter of time before the vehicle will catch on fire. The vehicle is very unpredictable and you dont know what it will do next it also dies while driving it ..

Filed Dec 17, 2009 · Engine · 130,000 miles · IN

This complaint is in reference to our 1999 ford expedition. My wife started out on her daily drive to work. As usual, she allowed the vehicle to warm up for 10 minutes before leaving. About 1 block from our home, she heard a pop and the vehicle started to shake, run rough, rattled and lose power. She also had trouble steering the vehicle because of the loss in power. She was able to return home without any further incident. I inspected the vehicle later in the day and found that the 2nd spark plug from the front of the engine on the passenger side had blown out of the head and damaged the coil. I am reporting this incident because I have read of many ford owners who have experienced this same failure. This vehicle received a tune-up at approximately 92000 mile in 2006. It currently has around 130000 miles.

Filed Jul 17, 2005 · Electrical · 103,999 miles · TX

My 1999 ford expedition has had to have the ignition coil packs replaced at least 4 times. The symptoms are misfire and a resulting severe engine vibration upon acceleration. Once the vehicle reaches a cruising speed, the problem appears to go away, but only until you accelerate again. Ford motor company knows there is is design flaw in these vehicles which causes water dripping from some source (the air conditioner or a windshield that is not sealed) to short out the ignition coil packs. They have a technical service bulletin out on the problem, but the problem is not always reported as a check engine light and they fail to diagnose this properly in some cases. The first 2 times this happened, I took the car to two different ford dealerships. Both trips cost me close to $400 each time. The third time it happened, we went to our local garage and the guy said this was a common problem, well known to auto mechanics, but that the individual failing cylinder could not be readily diagnosed by the computer codes, so it was an expensive repair because they might have to try all 8 coil packs to locate and identify the offender. The last coil pack that failed was replaced by my husband at a cost of $45.00 as the failing unit was easily accessible. You can see the great difference in cost of doing it yourself vs. Both of my trips to the dealership. My truck is failing again now and of course, it is exhibiting the same symptoms of a coil pack failure. This time, however, the coil pack in question is not easily accessible for the home mechanic and we will be forced to take it in for repair.

Filed Nov 4, 2003 · Engine, Lights · 48,000 miles · MN

1999 ford expedition: 4.6 sohc ead gasket leaks oil fixed twice still leaks. Multi function switch replaced once,doe's not work again. Expedition has rough idle ,never been able to fix.

Filed Dec 25, 1999 · Engine · IL

Engine rough idle. Vehicle "rumbles" at idle. Dealership contacted; no satisfaction.