Sounds more like a dead chassis battery.
At highway speed the alternator is putting our power to run everything. But when you come to a stop the alternator is barely putting out a trickle I'm not keeping up with demand. Hilow things like the HVAC fan headlights brake lights and running lights eat up power.
At highway speed the alternator is putting out power to run everything. But when you come to a stop the alternator is barely putting out a trickle I'm not keeping up with demand. Hilow things like the HVAC fan headlights brake lights and running lights eat up power.
Get the chassis battery load tested ASAP
