What happens if your radiator gets wet?

My friend was trying to do me a favor and washed my car for me… with the hood up. For now, I think everything’s working okay, but it’s making me wonder. What happens if your radiator gets wet?

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Answer provided by
Melanie Mergen
Answered on May 13, 2022
Yikes! Glad to hear your car seems to be working okay, though. If your radiator gets wet with a modest amount of water on the exterior, it generally shouldn’t cause much harm. It’s actually recommended you wash your radiator (using proper methods, of course) once a year or so to help keep debris buildup at bay.
Too much water can become more of a problem for the engine, where you might deal with problems like hydrolock, when the engine’s pistons stop moving and the engine stalls, along with other serious internal damage.
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