Oldsmobile Silhouette fluctuating fuel gauge issue not yet resolved on Oldsmobile Silhouette

Some Oldsmobile Silhouette owners report experiencing fluctuating fuel gauge issues, which may be caused by malfunctions in the fuel level sensor, fuel gauge, or associated wiring and connectors. In some cases, adding a bottle of Chevron Techron Concentrate Plus to the fuel tank and driving the vehicle can help resolve erratic readings. If the fuel sending unit is determined to be faulty, replacing it is often recommended. Additionally, using top-tier rated fuel may also assist in addressing problems related to the fuel sending unit. Owners may also encounter trouble code P0463, indicating unreliable fuel gauge readings and fluctuating fuel levels. Since the PCM (Powertrain Control Module) relies on fuel level information for diagnostics and communicates this data to the instrument cluster, any issues could impact the fuel level gauge and low fuel warning indicator.