Four problems related to car stall have been reported for the 1999 Lincoln Navigator. The most recently reported issues are listed below.
During regular, casual vehicle operation, one of the spark plugs flew out of its seat. Causing the vehicle to smoke from the engine compartment and lose compression. I thought the engine had caught fire and there was no warning to this happening. Spark plugs were installed per manufacturers specifications when this incident occurred.
The vehicle stalls at 45 mph or more when on the highway. Taken in for testing and results show that the computer has no codes, which recognizes failure. Manufacturer has been contacted and is aware of the problem.
Lincoln Navigator stalling at random times and at random speeds. . . No warning lights to alert me of problem. This vehicle has been in three times for the same problem. . . And was just towed in for the fourth time, same problem. The vehicle has a serious safety defect and I am refusing to drive it. Dealer cannot pinpoint the problem and admitted that there is some sort of unknown computer glitch. Both the dealer and Ford motor CO have made this process very difficult and I am demanding a full refund under the lemon law.
When consumer makes a stop and then proceeds car would stall in the middle of traffic. Consumer took car to dealer, and the dealer said that he didn't see a problem in his computer, and that he could not fix it unless it was in the computer.