KR69IDI
Full Access Member
OK guys, I've been getting great info here so I'm going to keep asking.
Brothers mack (04 AC400) for those that don't know, been running real good, but today he calls and tells me that it suddenly started low idling at 500rpm. Normally he said its always been at 650-700. The other strange thing is that he said the volt meter is showing around 13v when this happens. He said it reads 14 to 14.5 normally. Neither one sounds bad to me. Just wondering why these would be related. It goes right back up to 14-14.5v while running.
Anyone think that the alternator on the truck doesn't get "excited" at that low of an rpm? I've seen this on ag stuff before only reason I ask.
Been bustin' my head around this all day and I keep coming up blank
Brothers mack (04 AC400) for those that don't know, been running real good, but today he calls and tells me that it suddenly started low idling at 500rpm. Normally he said its always been at 650-700. The other strange thing is that he said the volt meter is showing around 13v when this happens. He said it reads 14 to 14.5 normally. Neither one sounds bad to me. Just wondering why these would be related. It goes right back up to 14-14.5v while running.
Anyone think that the alternator on the truck doesn't get "excited" at that low of an rpm? I've seen this on ag stuff before only reason I ask.
Been bustin' my head around this all day and I keep coming up blank