Help please I don't want to have to go to the garage
My blazer won't start I know it's not the battery or alternator
all the lights come one but the battery keeps acting dead even with a charger hooked up to it. Help please

 

If the battery is charged check your starter and also make sure the wires have a good connection.

 

I agree, check the starter. Have a friend turn the key to on and listen for the starter solenoid clicking on. If nothing is heard, use a voltmeter to determine if youre getting 12 volts to the starter solenoid and motor. It could be the wiring to the starter, which is much cheaper than replacing the starter itself.