Do starter relays need to be grounded?
Do starter relays need to be grounded? It should be grounded through the flywheel housing and the mounting bolts. The motor Is grounded and runs if the car is push started. If starter has a ground then the only other thing this leads to be the wire between the solenoid and the starter. This will be true whether you're replacing the battery or the starter. What's the connection between battery, alternator and starter? The only wires ran were positive + red in my case 4 gauge wires between battery, solenoid and alternator and a black - negative to chassis ground....