It starts back up every morning and sometimes if I wait about 1/2 hour or more. I have had it in, they replaced the battery, said it could be the fuel pump or ignition assembly, but I think it is somehow electrical. It runs great, but the random start is really old and inconvenient. Auto repair people say they can't diagnose a problem if it doesn't occur when they have it in! It always starts when they have it....

Cars & Trucks - Lincoln - Navigator - 2000 Lincoln Navigator