My fuel gauge goes from full to empty then back to full with nothing in between regardless how much fuel is in the tank.
GMC Sonoma Problem Reports
Newest GMC Sonoma Problem Reports
The alternator may fail, causing a "no charge" condition. An internal bearing may also fail and cause an abnormal noise. If the vehicle is driven too long with a failed bearing, the alternator may stop turning, which can cause the serpentine belt to break or the engine to stall and not turn over.