Buick Lucerne engine shuts off intermittently while idling and driving, will not restart for 5 to 10 minutes with codes U0107, P0601, P0606 on Buick Lucerne

Some Buick Lucerne owners report experiencing intermittent engine shutdowns while idling and driving, which may be accompanied by difficulties in restarting the engine for 5 to 10 minutes. These issues are often linked to diagnostic trouble codes (DTCs) such as U0107, P0601, and P0606. Potential causes include a faulty Engine Control Unit (ECU), ignition switch, alternator, spark plugs, or ignition coil, as well as a dead battery or contaminated fuel supply. Additionally, some owners find issues with the Ignition Control Module (ICM) ground wire that can lead to shorts and stalls. It is crucial for owners to check for loose connections or damaged wiring related to these components and to ensure a clean fuel supply. Addressing the specific DTCs related to lost communication with the throttle actuator control module and faults in the ECU processor is also recommended for a thorough diagnosis and resolution of these engine issues.