i have a gmc blazer of 1996 .... i leave my car one day without turn on,and the next day when i turn on my car it make ittempt to star many times but not turn on and next the baterry turn low .why i cant do?

 

So when you turned the key to the 'start' position (all the way forward), the engine would turn over (spin), but it would not fire off and run on its own? If so, there are multiple things that it could be. Spark, fuel, air are three essential requirements of any functioning engine.