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Your Car Hase A Closed Cooling System. So Your Hoses Will Feel Hard While The System Is Hot. When It Cools They Should Be Somewhat Soft Without Cracks In Them Or Deteration. If They Are You Need To Have All Hoses Checked And Replaced As Required. More Engines Are Destroyed By Overheating Than Oil Loss By Far. Best To You

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Q: Why are your radiator hoses rock hard when your engine is hot?
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