97 Jeep Grand Cherokee over charging battery

by dorieoreo - 3/27/13 6:06 PM

While driving my 97 Jeep all of a sudden the instrument panel started to go nuts, all the needles went wild then they went to nothing. I shut it down now it won't stay running without giving it gas. Meter read running "RICH" . Battery is getting a charge of 18-19. Burnt out the high beam bulbs. We changed the alternator,and all connecting wires. Checked fuses. We are also, getting an arch on the pos. post with nothing on. My two mechanics are stumped. Please help