Check the fuses and the relay that controls the door locks. A power loss is the most likely cause of the problem.
The door lock, on your 1999 Mercury cougar, can be replaced by removing the inside door panel. The locking mechanism is easily visible and can be changed.
If the bearings in the alternator get bad enough it can lock up.
To disable a factory installed alarm on a 1999 Mercury Cougar, place the key in the ignition. Turn the key only halfway and let it sit in that position for 10 minutes before starting the vehicle.
The fuel pump on a mercury cougar is in the fuel tank. You are going to have to remove the fuel tank, take the lock ring off of the tank, and then pull the pump assembly out.
I WOULD LIKE TO KNOW HOW I START MY TRUCK I PUT THE KEYS IN THE INGNTION AND I HAVE TROUBLE STARTING IT I BELIEVE IT HAS SOMETHING TO DO WITH THE SAFETY LOCK
4 wheel ABS brakes are standard on the Mercury Mountaineer in 1999
replace the lock actuator (motor)
because your mom broke your car
If the sliding door on the 1999 Mercury Villager will not stay open, check for something that is not allowing the latching mechanism to lock into place. Make sure that the door is all the way back so that it can lock in.
if the doors do not lock then one of the fuses is out!
It sounds like the security alarm is stuck. While this is happening take the key out of the ignition and shut the drivers door, then lock and unlock it with the key. If the problem stops even for a minute then the alarm is the problem.
try pressing the lock button twice and holding it down on the 2nd press,thats what i have to do on mine