Car won't start
My wife tried starting 2003 Cadillac CTS last night, heard a loud click, like it came from inside car, headlights came on, clock ran backwards and forwards, door locks cycled thru several times, she turned key off and tried to start again, nothing happened, tried starting it this morning, got a clicking sound from under hood, radio works, A/C works, lights work, clock ran backwards again thern reset to correct time when I pulled key out of ignition, second battery, probably about 5 years old. Could battery be the problem, I heard that you must have some kind of alternate power supplied when changing battery, ios this true?
have it put on the computer. You nedd to see what is wrong. Could be many things. Wires could be grounded, computer could be malfunctioning, dead battery, anything. You need to narrow it down. You can go to Auto zone and they will do it for you for free.
That was my first thought, but you never know. Good luck.
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