help with my 99 silverado

Went to start it up tonight after work and I have no electrical power past the battery, all cables are hooked up and we even tried to jump starst it. The Battery is showing a greeneye, and was running ok this morning when I drove to work. I have been having a problem with the check engine light comming on and the truck will start bucking. ant ideas anyone? I've had the dealer tell me there is nothing wrong with it. The truck is a 1999 extended cab 2wd 4.3 motor and 5 spd. Any help would be most helpfull. THANKS

So you are saying that you have 12.6V at the battery and if you check for voltage at a fuse you have none? Sounds like a bad connection. You need to find where the voltage is stopping. The positive battery cable should slip with one section going to the starter and another to the power distribution box under the hood. Trace the cables with a voltmeter to see where you loose the voltage. Also check that you have a good ground on the negative cable to the block and the body/chassis.