Oldsmobile Alero no power issue after parking for several hours on Oldsmobile Alero

Some Oldsmobile Alero owners report experiencing no power issues after parking for several hours, which can stem from various causes. These owners often find it necessary to check fuses and relays to ensure they are functioning properly, as blown or faulty components can lead to power loss. Additionally, verifying fuel pressure is crucial, as it determines whether power is reaching the fuel pump. A common problem reported is a failed Passlock sensor, which can prevent the vehicle from starting. In cases where there is no power to the injectors, owners are advised to inspect fuses, PCM power, and ground connections, and consider performing a Passkey relearn if related to the security system. Lastly, some owners check for spark and fuel reaching the engine, using starting fluid to diagnose whether the issue is fuel-related or pertains to the ignition system.