1999 Lincoln Navigator Electrical system Problems

“It seems that this issue that I'm having with my vehicle already was raised and dismissed. However, I very much would like this investigation re-opened because I believe that the problem is under reported. I own a 1999 Lincoln Navigator and every time it rains, my windshield wipers, windows and locks stop working. This happened as I was driving so needless to say I slowed down to almost a crawl and subsequently was pulled over by the police. They helped me to pull my vehicle off the road and I had to wait until it stopped raining before I can drive back home. …”

“Rear wiper does not always come on, odometer lights go out, door ajar light comes on when all doors are closed, radio sometimes will not turn up, interior cabin lights come on, seat warmers do not come on. All of this happen intermittently, with no warming, rhtme or reason. Unable to have diagnosed, but constantly read entries of same problems from other owners....can be a safety risk when I cannot clear rear window of rain/mud.”

“Spark plugs failed. As a result, vehicle jerked forward without warning. Coolant leaked twice in the past. The radiator assembly was reinstalled. The left front window squeaked. The trim on the front door panel was removed and reinstalled. The engine light had come on and the engine had run rough. The service dealer replaced the faulty coil pack on the #4 cylinder. The heater hose was replaced due to leakage. The heater did not blow air and displayed a burning smell.”

“Rear taillights would not work and headlights would not go off at times door ajar would come on and all doors were closed at times heated seats would work and sometimes not took to shop and had wiring diagnostics done and found out needed new headlight switch put in it shorted out burning wires under dash garage had to order new headlight switch put it in and it did not work ordered 3rd one and same situation still did not work am being told by ford and garage that there is a backorder on part because of known problems with the headlight switch control that is being made and will be at least…”

“The windshield wipers come on and off intermittently without being switched on/off. They seem to have a mind of their own. The rear wiper does not come on at all most times, even when turned on. Also, the odometer lcd readout comes on and off intermittently. Several light on the dash controls panels come on and off at will as well. It just seems that there is several problems with the wiring systems or possibly in the computer. However, since it only does it intermittantly you cannot plan to check it with the dealer, because there is no telling when it will occur and how long it will last.”