Really needing help

[silver sniper]

I just purchased a 1993 suburban silverado. When you turn and give it alot of fuel it will die. It idles between 0 and one on tach needle jumps. Has had a new distribiture, plugs, wires, fuel pump, and it only has 129000 miles on it. The radio quit working which is aftermarket. What could be the problem?

 

[VanGo]

Do you lose all electrical when it dies? Could be a fusible link or something

 

[silver sniper]

No engine dies also noticed dash lights dont work all the time radio and dash vibrate on at times

 

[jc73]

have you checked your grounds? at the battery,frame,body,etc. how's your ground cable? corroded? tight? my dad had similar problem we found his ground post was broken inside the battery.