I have noticed that the electrical gauge has been fluttering. I took the truck to Batteries Plus and had the battery and alternator checked. That tech told me the battery was fine and the alternator was bad. I drove over to AutoZone to get an alternator and they wanted to test it also, so I let them. The whole system passed their test. I am confused as to the problem. Is the alternator failure intermittently? I don't know if this complaint is related to the engine stalling complaint I put in. I am at my last payment for this vehicle and I just wanted to enjoy a vehicle that was completely paid off. Now I have huge repair bills in my future.