Chevrolet Spark intermittent starting issue, requires 10-minute wait after failure to turn over on Chevrolet Spark

Some Chevrolet Spark owners report experiencing intermittent starting issues that require a 10-minute wait after a failure to turn over. These problems may stem from a weak or dead 12v battery, which can prevent the engine from cranking or cause it to crank slowly. Additionally, ignition issues, such as a lack of spark, can hinder the starting process. Some owners have identified problems related to the Passlock system, where the BCM fails to receive the correct signal from the ignition switch resistor, resulting in engine shutdown. Fuel pressure issues, particularly when starting cold, may also contribute to the problem, and cycling the key to listen for the fuel pump can aid in diagnosis. Lastly, checking and cleaning all electrical connections to the ECM is crucial, as poor connections can lead to starting difficulties. It is recommended for owners experiencing these symptoms to investigate these potential causes to effectively address the intermittent starting problem.