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Coolant leaking into the engine of a Polaris 400 ATV can be caused by several issues, including a blown head gasket, a cracked cylinder head, or a damaged engine block. These problems can create a pathway for coolant to mix with engine oil or enter the combustion chamber, leading to performance issues and potential engine damage. Regular maintenance and timely inspection of the cooling system can help prevent such leaks. If a leak is suspected, it’s important to address it immediately to avoid further damage.

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1mo ago

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