2001 Chevrolet Blazer Just Had ABS Module Fuel Pump Float Changed After Driving

Have the charging system tested. When they find the generator is defective, replace the battery too unless it is less than about two years old. These generators have a real high failure rate due to the huge voltage spikes they develop. The battery absorbs and dampens those spikes, but it loses its ability to do that as it ages. If you leave the old battery in there, repeat generator failures can be expected.