What are the reasons for high water temperature in Jinbei vehicles?
3 Answers
Reasons for high water temperature in Jinbei vehicles: 1. Check the coolant: Inspect whether the coolant level is too low. If it is too low, you need to top up the coolant. If there is no coolant available, you can add tap water or mineral water temporarily, but you should replace it with new coolant once the temperature returns to normal. When topping up the coolant, wait until the water temperature normalizes before opening the radiator cap. It is best to wear gloves and cover the radiator cap with a wet cloth, then slowly open the cap a small gap to release steam before fully opening and adding coolant. 2. Check for leaks: If you find leaks at the radiator, hoses, or hose connections, it indicates that the overheating is caused by leakage. 3. Check if the radiator fan is working: At idle speed, the radiator fan should start running after a period of time. If it does not run after a while, it means the fan has malfunctioned. Possible causes include a blown fan fuse or a faulty thermostat or motor.
I often encounter high water temperature in Jinbei vehicles, mainly due to insufficient coolant, possibly from a leaking radiator or evaporation. The thermostat may be stuck closed, preventing coolant circulation and causing rapid heat buildup. The fan not working, especially during summer traffic jams, leads to inadequate heat dissipation. A faulty water pump failing to circulate water, or a clogged radiator with dirt affecting cooling efficiency. Loose belts causing slow water pump rotation can accelerate temperature rise. I make it a habit to check coolant levels before driving, adding distilled water or specialized coolant if it's below the Min line. Testing the fan involves idling with the AC on to listen for operation. Regularly changing coolant and cleaning the radiator helps prevent this issue. Don't push the engine when overheating to avoid cylinder damage—safety first. Stop and turn off the engine promptly, then slowly drive to a repair shop after cooling down for inspection.
When driving my Jinbei van, the water temperature has spiked several times, with fan circuit failure being the main cause—either a blown fuse or a faulty relay prevents the fan from spinning, leading to poor heat dissipation. A failed thermostat halts coolant circulation, and air entering the system creates vapor locks that obstruct flow. Leaking water pump seals cause pressure loss and coolant leakage, or a corroded radiator may need replacement. Poor-quality coolant leads to scale buildup, clogging the cooling system. I recommend checking hoses for bulges when the engine is cold, and after warming up, squeezing them to feel pressure changes as a simple way to test the thermostat. Annual radiator maintenance helps prevent clogs. If the temperature rises too quickly, turn off the AC and set the heater to maximum for temporary cooling—but only as an emergency measure. Safely pull over and call a tow truck rather than risking engine damage by continuing to drive, which could necessitate major repairs.
