After 170,000 miles the alternator in the truck finally decided to go south. At low (300-400) RPM after coming to a stop, the ammeter would start to droop and the engine would die. I’d have to keep my foot on the gas to keep RPM up. Otherwise while driving and idling it was fine. Fortunately I replaced it before it stranded me somewhere.
I suspect it’s been dying for a while. Last summer I noticed I’d have a weak idle with similar symptoms whenever sitting at a light and the A/C compressor would kick on.
I went by A-Line and bought a remanufactured AC Delco unit. Swapping it was quick and easy, took less than an hour to do. Which was good, because it was 36 F outside.
