Hey Guys, I have a 2001 Impala. Somedays when I get in my car and start it, the car will not start. The thing is, it will only do this once every 4 months or so, and after waiting and trying again after about 45 mins sometimes it will start back up and sometimes it wont start up until the next day. Any ideas on what this could be or has anyone else had this trouble.
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Fuel Pump

 

Ignition lock cylinder, have it scanned for codes if a code b2960 is stored then thats the problem

 

does the security light go on when you have this problem?