So this is a wierd one. Hoping someone has seen this. Battery light comes on while driving. It is overcharging. If I turn the heater fan up light goes out. Gauge returns to normal and hubs start ratcheting. Turn fan down the light comes on, gauge goes high, and hubs stop ratcheting. I stopped and disconnected the electricial connector for the vacuum solenoind for the hubs. Problem seemed to go away. Hub engagement has been a issue in the past. Ratcheting while driving. Alternator is new. Battery is new. Changed both of them for other reasons. Thinking maybe a ground somewhere. I want to trade the truck but can't until spring. Please help!!
Thanks