Question about 1990 Lincoln Continental
Replaced battery & alternator, but something is still completely draining battery while car sits and is turned off overnight.
Sometimes have to start car using selonoid switch w/screwdriver.
Car has door keypad system.
If you are jumpering the starter, then the battery is not being drained, the starter may have a bad solenoid.
If the problem still is a dead short, a painstaking troubleshooting is required.
Remove one fuse at a time, check for voltage drop, and see which one is the culprit. Then you woud have to locate each item on that circuit and trace the wires for one that is broken, or pinched & contacting ground.
Also, check at night or in a dark garage, as trunk, door, or hood pin switches may be stuck in the open position - and will keep the lights on.
Interesting note - your having to jumper the solenoid on the starter indicates a possible worn/damaged ignition tumbler. If your tumbler is not seating on the OFF detent, your ACC may still be left on even with the key out of the ignition.
Posted on Jan 15, 2009
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