Is a car water temperature of 100 degrees normal in summer?
1 Answers
It is abnormal for a car's water temperature to reach 100 degrees. Relevant information is as follows: 1. Under normal circumstances: First, confirm whether the liquid level in the coolant reservoir is appropriate; then start the engine and observe the water temperature gauge as the temperature gradually rises. Hold the upper radiator hose and feel the temperature gradually increasing; hold the lower radiator hose, and the temperature remains almost unchanged. 2. After the engine warms up: The cooling fan also operates, but the temperature of the lower hose may be slightly lower than that of the upper hose when the water temperature exceeds 95°C. If the thermostat opening is insufficient, the coolant circulation flow decreases, and the amount of water flowing from the engine into the radiator is reduced, causing the engine's heat to not be dissipated in time, thereby increasing the coolant temperature inside the engine. Solution: Replace the thermostat. 3. When the water temperature gauge climbs to 95°C: The upper and lower hoses are at the same temperature and very hot to the touch. Possible causes include a damaged cooling fan or circuit, a faulty thermal switch on the radiator, or a blown fuse. A blown fuse is often accompanied by or hides early faults in the circuit or fan. Solutions: Replace the cooling fan; replace the thermal switch; replace the fuse and check the circuit.
