cobia2017
Member
- 53
- 34
- 18
- Location
- chesterfield, va
I feel like my alternator issues never end...currently I have an issue where alternator 1 is not correctly/fully charging battery number 1.... Alt 2 is charging battery 2 as battery 2 reads 14.6 while truck is running, however, interestingly, I cannot get a voltage reading at the excitor plug on alternator 2. The execitor plug on alternator 1 reads 11.5v on both the red and brown (when on) wires. Battery number 1 only reads 12.5 volts while running and will increase to 13.5v with a few seconds mild engine rev, but with morning work commute with lights and heater, battery 1 voltage will diminish and require trickle charging during the day. The dash lights are working (both gen lights) and the heater fuse is working as well. I did change the alternator 1 to a know good alternator and same problem, no changes for better or worse, which leads me to think its not a bad alternator, rather some wiring issue. I changed the battery to rule out the possibility of a bad battery, but the battery is not the culprit either. So, I have to assume its in the wiring. Any and all help is appreciated.