Chevrolet Astro engine not starting due to lack of spark at plugs on Chevrolet Astro

Some Chevrolet Astro owners report experiencing issues with their engines not starting due to a lack of spark at the plugs. This problem may stem from ignition system issues, which can be intermittent and involve various components within the system. Additionally, worn or dirty spark plugs are commonly cited as a reason for this lack of spark, prompting many owners to inspect and potentially replace them. Faulty or arcing spark plug wires can also contribute to the issue, leading to recommendations for checking and replacing these wires if necessary. To diagnose the lack of spark, some owners perform tests such as running the engine in the dark to observe arcing wires or misting the wires with water to reveal faults. Confirming the absence of spark can be done by disabling the fuel system and using a spark plug tester while cranking the engine. It is crucial for owners facing these issues to thoroughly inspect ignition components and conduct diagnostic tests to identify and resolve the underlying problems.