Pontiac Montana won't start, possible blown head gasket issue after sitting for 2 years on Pontiac Montana

Some Pontiac Montana owners report experiencing issues with their vehicles not starting after sitting for two years, potentially due to a blown head gasket. These owners may notice poor engine performance, including difficulty starting the engine and rough idling. Overheating can also occur, often linked to coolant leaks from a blown head gasket. Additionally, some owners report coolant leaks that lead to a loss of coolant, affecting the engine's ability to run smoothly. Signs such as white smoke from the exhaust may indicate coolant entering the combustion chamber, while milky oil can suggest coolant mixing with the oil. It is essential for owners suspecting a blown head gasket to seek a professional inspection, as driving under these conditions can lead to severe engine damage.