Hello. I have a 1998 lesabre and it would not start either. At first I thought it was a paskey issue but the security light was not on. As I was looking under the dash for the BCM module I accidently moved the ingnition cylindr and noticed the key was not in it. I turn the cylinder as to start the car and of course it did not even ingage the starter but, the security light did come on telling me the pas key system was working.I do not know why the cylinder turns without the key. Maybe somebody broke it. The car does have 200000 miles. The next time it did not start I simply removed the key turned the cylinder, reinserted the key and it started. The problem is the ignition switch in the steering colume when the starter does not ingage and the security light is off.
give symptoms: any noises (if so describe), is security light on dash on, etc.
Because its a 1988 Buick LeSabre
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When the security light is on the starter will not engage. You must wait a few minutes for the light to turn off before attempting to start car again, this is to help prevent theft. Ensure the contacts on the black chip on the key are clean and that the chip is centered in the key.
Ensure the resistor on key is centered (in key) and when you try to start car make sure "security" light is off. If it goes on do not try starting car, just wait for it to go off before re-starting.
I found that a wire to the ignition switch was broken where you put your key in . this did not let the chip be read . and the security kept flashing.and car would not even start. after repairing the wires it started up perfect. hope this helps
If you lights do not dim when turning key, then probably your starter.
On my 2002 I turn key to ON, but don't start, pump gas pedal 3 times, turn off key. Mark
My 2003 Buick Century also did that today and I couldn't start my car. Apparently the key for the ignition has been damaged somehow and won't let the car start. Try using your extra key to see if that helps.
car stalls backfires hard to start