‘75 Dart Sport Charging system issue(s)
You are CORRECT. Start by testing the continuity from the eyelet terminal at the alternator to the black wire. They can break inside
Read this article about the problems with Mopar bulkhead connectors and ammeters
Catalog
which explains the problem and also has this nice, simplified diagram of power distribution:
Follow along: Power output from the alternator goes from the output stud on big BLACK through the BULKHEAD CONNECTOR, under the dash to the WELDED SPLICE....to and through the AMMETER...out on the big RED wire and back out the BULKHEAD CONNECTOR .. through the FUSE LINK....to the BATTERY
SInce the car accessories seem to work?? and the car runs, the fuse link/ RED/ bulkhead connector for the RED are likely if not "OK" then at least functioning.
So I see the problem as likely something in the BLACK output wire or the BULKHEAD CONNECTOR for the BLACK wire
First three things I'd check:
1....Continuity from alternator output eyelet terminal to the wire itself
2...Follow the harness and look for a LARGE WHITE connector. This was used on some years and is a big problem. It separates the engine from the firewall
3....Take the bulkhead connector apart and inspect those terminals.
You are CORRECT. Start by testing the continuity from the eyelet terminal at the alternator to the black wire. They can break inside
Read this article about the problems with Mopar bulkhead connectors and ammeters
Catalog
which explains the problem and also has this nice, simplified diagram of power distribution:
Follow along: Power output from the alternator goes from the output stud on big BLACK through the BULKHEAD CONNECTOR, under the dash to the WELDED SPLICE....to and through the AMMETER...out on the big RED wire and back out the BULKHEAD CONNECTOR .. through the FUSE LINK....to the BATTERY
SInce the car accessories seem to work?? and the car runs, the fuse link/ RED/ bulkhead connector for the RED are likely if not "OK" then at least functioning.
So I see the problem as likely something in the BLACK output wire or the BULKHEAD CONNECTOR for the BLACK wire
First three things I'd check:
1....Continuity from alternator output eyelet terminal to the wire itself
2...Follow the harness and look for a LARGE WHITE connector. This was used on some years and is a big problem. It separates the engine from the firewall
3....Take the bulkhead connector apart and inspect those terminals.
