Installed a new battery and alternator in your 1992 Lincoln town car your battery still goes dead but will start with jump but goes dead after car is shut off agin?
Answer . \nYou have a current draw from a accessory on your car. The hard part is where is it? I usually pull fuses/connectors/circuit breakers and look for a spark when re…installing them. I do this because a current draw is a circuit and when you break that circuit it will cause a small spark.It sounds like you have a heavy draw so I would still suspect the alternator as it has a hot lead even when the ignition switch is off and so does the headight switch...check em out...... ( Full Answer )