Re: Ignition Key Doesn't Turn Sometimes in 2001 Jeep...
This is a tumbler problem. If you want to fix it yourself, you need to disassemble the the column untill you get to the lock cylinder and figure out how to remove it and remove the tumblers. This will allow many different keys to start the car however. Your other option is to replace the lock cylinder with a new one and new keys. That is up to you, but you should do something before the keys quit working all together.
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put program key in ignition turn ignition switch to on position engine off for 3 to 15 seconds.you should hear acoustic signal and immobilizer lamp will flash then turn off ignition switch.you need two program keys to do this procedure twice. with in sixty second insert non program key in the ignition switch turn to on position engine off for at least with ten minutes you should hear acoustic noise immobilizer lamp flashing turn off ignition switch if all failed the dealership have to use diagnostic equipment to reprogram ignition key or keys.
this might sound easy but have you turned the wheel enough to take tension off the key mechisium it sometimes puts a lot of preassure on the lock and you cant turn key till you turn steering wheel opposite direction to take preassure off key lock
SOUND LIKE YOU HAVE FAULT IN THE KEY IT COULD BE WORN.TRY ANOTHER KEY PUT IN THE IGNITION SWITCH TURN KEY ON POSITION FOR 10 SECONDS UNTIL IMMOBILIZER LAMP FLASHES THEN TURN OFF WAIT 10 SECONDS SEE IF CAR STARTS IF NOT.YOUR CAR KEYS AND IGNITION SWITCH FAULTY NEED REPLACING THE IMMOBILIZER CANT RECEIVE A SIGNAL FROM THEM.
Try turning key around or use a spare key, make sure steering wheel isn't being forced against the internal lock. Are the wheels against a curb or object? if so turn steering wheel to relieve pressure on ignition lock. other wise lock cylinder maybe worn out and will need replaced. Good luck!
Do you have an alarm on this? If you do, that is most likely the problem. There seems to be a problem with the alarms. You may want to have a new key made just in case. Sometimes the keys are magnetically charged and after time, it wears off.
buy a tube of lock cylinder lube (never use any type of oil) from any hardware store, spray the powdered graphite into the cylinder and then insert the key several times while trying to turn it, if this doesn't work u will need to replace the cylinder and have the anti theft programmed for the new key (if so equipped).