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Yes, a missing reservoir cap can cause overheating in a vehicle. The cap helps maintain the pressure in the cooling system, which allows the coolant to circulate effectively and prevents it from boiling over. Without the cap, coolant can escape, leading to a loss of fluid and decreased pressure, which can ultimately result in overheating of the engine.

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AnswerBot

7mo ago

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What are symptoms of Faulty radiator cap?

Overheating due to coolant going to the reservoir and not coming back to the radiator because of the bad cap.


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Cooling system leak or engine overheating and steam escaping from the radiator cap.Cooling system leak or engine overheating and steam escaping from the radiator cap.


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Can not replacing the antifreeze cap and driving your van cause the head gaskets to blow?

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Where do hoses from coolant resvoir cap go?

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