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Can You Drive with High Coolant Temperature?

2 Answers

BrooklynFitz

07/24/25 6:30am

When the coolant temperature gauge on the dashboard indicates excessively high temperature or the coolant level warning light flashes, it means the coolant temperature has exceeded the specified limit or the coolant is insufficient. You should immediately stop the car for inspection. At this time, the engine is "running a high fever," and continuing to drive may lead to increased mechanical wear of the engine, overheating and aging of wiring, or even smoke and spontaneous combustion in the engine compartment. If there is a fault in the cooling system, it can easily cause the radiator to boil, and excessive internal pressure may result in radiator rupture or pipe bursts. Here’s how to handle excessive radiator temperature: 1. When the coolant temperature light turns red, pull over as soon as possible and check the vehicle's condition. 2. Do not rush to open the radiator cap. Instead, check if the cooling fan is running and look for signs of blockage or damage in the radiator. 3. After the engine temperature has decreased somewhat, open the radiator cap to release pressure. If the coolant level is low, you can add new coolant or distilled water as an emergency measure.

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ErinLynn

08/11/25 2:15am

Never drive with high coolant temperature, it's extremely dangerous. I've encountered this situation before - engine overheating can lead to cylinder explosion or deformation, and in severe cases may cause complete engine failure or even fire. When the dashboard warning light comes on, immediately pull over and turn off the engine to prevent further damage. Turn on hazard lights to alert other drivers, and only check coolant levels after the vehicle has cooled down. If levels are too low, refill promptly but never open the hood while hot to avoid burns. Common causes include water pump failure, fan malfunction, or system blockage. Long-term neglect can lead to repair costs exceeding thousands. Always prioritize safety over risking a drive - calling a tow truck is more reliable. Regular maintenance can prevent these issues.

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