Final answer:
Coolant hoses in vehicles should be replaced every five years to prevent engine damage.
Explanation:
Coolant hoses in vehicles should be replaced every five years as a general guideline. Over time, these hoses can deteriorate, crack, or leak, which can lead to engine overheating and damage if not addressed. It's essential to inspect them regularly for signs of wear or damage and replace them preventively before any issues arise.
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