yeti
07-03-2004, 19:03
Recently I have had to jump start my truck. I checked voltage at the alternator and found it to be about 10 volts. My truck had a 63 amp alt. so I ugraded to a 78 amp from a 85 Chevy 6.2.
I now have 15.5 volts at the alt but I'm only getting 13 volts at the battery. What would cause this. Electrical problems are usually not a problem but I'm not yet familiar with the 6.2 wiring.
One thing i remenbered. I caught the batt wire from the atl. on the valve cover and burnt out the fusable link at the firewall. I have replaced it.
I now have 15.5 volts at the alt but I'm only getting 13 volts at the battery. What would cause this. Electrical problems are usually not a problem but I'm not yet familiar with the 6.2 wiring.
One thing i remenbered. I caught the batt wire from the atl. on the valve cover and burnt out the fusable link at the firewall. I have replaced it.