Car Stall problems of the 1999 Ford Expedition

I have had 2 different spark plugs ejected from the engine on 2 separate occasions. The first time I took it in and had a heli coil installed. I have not repaired the second instance yet. There was a 2 year time span between the events. The first time it happened I was at low speed going through town. The second time I was on the freeway.

The contact owns a 1999 Ford Expedition. The contact stated that while driving approximately 80 mph, the power steering assist failed. The contact also mentioned that the steering wheel became difficult to turn and the vehicle stalled without warning. The vehicle was restarted after multiple attempts. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 102,000. The VIN was unavailable.

1. Normal driving conditions, and normal operation of the SUV. 2. Sudden noise from the engine, upon inspection we found that the spark plug had been ejected from the engine block and striped the threads. 3. Modification kit (readily available, as the parts store said this is a very common problem) was purchased and installed.

99 Ford Expedition blew out #3 spark plug and damaged coil, no forewarning of this , has 114,000miles, cost me $400 for a temp fix,,was told this is a common problem with the 5. 4 engine, garage installed a repair sleeve and special plug,,no warranty,,I was 800 miles from home, when the plug blew, I thought somebody took a shot at me. . . It also ruined the coil.

Blown spark plug in a 1999 Ford Expedition with a 5. 4l. Vehicle was sitting idle when failure occurred. Inserts were installed in spark plug hole.

- the contact owns a 1999 Ford Expedition. The contact stated that intermittently the vehicle stalls without any prior warnings. In 2004, a technician concluded that the engine compressor strips the spark plug thread, which causes the plugs to eject. He then replaced the engine head, and ecm at an expense of $2,200. 00. The failure resurfaced so he took the vehicle back to a repair facility. A mechanic replaced the spark plug wires with a special thread, at an expense of $1,600. 00. The manufacturer was notified. The failure mileage was 60,000. The current mileage was 125,000. The vehicle identification number was unavailable.

While driving approx 70mph w/cruise control engaged, the engine's head gasket "blew" causing the vehicle to stall. Ts.

This is a replacement vehicle from Ford for my 1999 Ford Expedition. The replacement vehicle has many of the same problems. The stalling when accelerating in an intersection is a serious safety problem. We we're nearly t- boned. Ford sometimes admits that they are aware of the problems and then at times will deny them. Please investigate.

While turning vehicle on there was stalling. Consumer cut the vehicle off to restart, and engine revved. Vehicle was driven straight to the shop after the first episode, and it stalled all the way there.

At 3000 miles the engine was replaced due to a knock in the engine. At 11,000 miles there was a severe vibration in the drive train at 65 mph with the vechile under load - Ford couldn't identify the problem and had no fix. At 12,500 miles the torque converter failed resulting in the vechile stalling at stops. The torque converter and transmission were replaced. This reduced the vibration but did not eliminate it. Again Ford tried several times but could not identify and correct the problem. At 21,000 miles the vechile lost all power and would only move by reving the engine (like severe clutch slippage on a manual transmission). Ford is presently investigating. Both failures could have resulted in severe accidents if the driving conditions had been slightly different at the time of the failures. The problem appears to me to be in the computer constrol system for the transmission resulting in possibly the second failre of the transmission.

Vehicle does not accelerate, it hesitates/backfires and stalls. Vehicle has been seen by the dealership twice for this problem. However, dealer is not able to correct the problem.

Piston knocking and vehicle is losing power, and it stalls. Could be dangerous if on a highway. Consumer states at 50 mph cars starts to vibrate.

While traveling at 75 mph vehicle stalled without any indication. Dealer has been notified. Please provide further information.