Hello I am so stumped right now and ready to pull my hair out. So I have 2003 chevy trailblazer ext that I just bought about 2 months ago. I love trail blazers so much and I couldn't pass up on the ext. She drives amazing that is until one night I was leaving the grocery store and she would not start I had all lights on inside. I tried three times and she finally started. When I got home I turned her off and then turned her back on and she wouldnt start again. Did some research and it was my starter. So we replaced that, then the starter would not turn off it just kept running so we checked wires and fuses and were stumped so I took to a buddy he said it sounded like the ignition so he checked and said it was good. The starter has constant power running to it and can't find where. So we put in a push start. Through all of this the security light flashes and then goes away. The only way I can get her started now is by trying to start her once turn it off bang on the ignition turn key to on bang on ignition push the button and she starts. Please help I am so loosing my mind and just want my baby back. Before the starter went she never had any problems no security light no check engine light she still has no check engine light.