99 Silverado Electrical Issue?

[dansan]

I have been having trouble with the truck going completely dead when I turn the key to the start position. Everything just goes dead. I was told to disconnect he battery and reconnect - before starting or using any electrical power, press the unlock button 3 times within 5 seconds. At first this worked and the truck would turn over and start. But now it just clicks once and is dead. No lights or dash lights. Any ideas anyone?

[amac209]

double check the battery connections, they have to be clean and tight. you might have something killing your battery or a bad battery. does it start off a jump? make sure the alternator wires and starter wires are tight. as well as where the negative battery cable attatches to the block.
good luck