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The intake manifold gasket seals the intake manifold to the engine's cylinder head, preventing leaks of air, coolant, and fuel. It ensures the precise delivery of the air-fuel mixture to each combustion chamber and maintains engine efficiency by preserving the required pressure.

Symptoms include coolant leaks, engine overheating, visible leaks under the vehicle, the check engine light being on, engine stalling, and rough idling.

Regular inspection helps identify potential issues early, preventing engine damage from coolant leaks or overheating. It ensures optimal engine performance and efficiency.

Intake manifold gaskets typically last between 50,000 to 80,000 miles. They should be replaced when showing signs of failure or at the recommended interval to prevent engine damage.