How to Solve the Overheating Issue in Jianghuai Refine?

[MacEvelyn]

Start the engine and wait until it reaches operating temperature. Connect the diagnostic tool to check if the coolant temperature data stream matches the gauge reading. If normal, proceed to the next step. Open the engine hood and observe whether the radiator fan operates normally at both high and low speeds when the temperature rises. Upon inspection, this vehicle's fan only operates at high speed without low-speed function. Open the engine compartment fuse box and use a test light to verify that the radiator fan fuse is intact. The radiator fan relay is also functioning properly. Enter the cabin, turn on the AC, and further observe the radiator fan operation. It's found that the condenser fan is seized and already damaged. Remove the front bumper and replace the new condenser fan to resolve the issue.

[DelAdelyn]

That time when I was driving a JAC Refine, the temperature gauge suddenly shot up, which gave me quite a scare. I immediately pulled over, popped the hood to check, and found the coolant was almost empty—probably leaking somewhere. The fan wasn’t spinning smoothly either, possibly due to wiring issues. I tried adding some purified water as an emergency measure, then drove cautiously to the repair shop. The mechanic found that the water pump connection was loose and leaking, and after fixing it, everything returned to normal. Since then, I’ve developed a habit: checking the coolant level before every drive; testing the fan monthly to ensure it starts smoothly; and regularly replacing the antifreeze to avoid clogs from impurities. Never push through overheating—it can wreck the engine, and repairs are costly. During summer heatwaves, I’m extra cautious and avoid overloading the engine on highways.

[LucilleDella]

As someone who frequently works on cars, I've dealt with quite a few Jianghuai Refine overheating issues. Start with the basics: check if the coolant reservoir level is low, and top it up if needed; inspect whether the radiator front is clogged with dust; feel the temperature of the hoses—uneven heating indicates circulation problems. Water pump failure is common, and it should be replaced if there's abnormal noise or leakage. If the fan stops working, it might be due to a faulty relay or temperature sensor. Don't wait until the temperature gauge hits the red—stop the car and cool it down immediately upon noticing any abnormality. For regular maintenance, I recommend cleaning debris from the outside of the radiator and replacing the coolant every two years to prevent corrosion. Engine overheating can potentially melt pistons, but simple checks can prevent major damage. Those with good mechanical skills can attempt basic troubleshooting, but a professional shop is the safest bet.

[Gollum]

When the high-temperature warning light comes on while driving, you must pull over immediately. Let the engine idle for a few minutes to cool down, and turn on the hazard lights to alert others. High temperatures can cause explosive damage to the engine, such as piston seizure, which can be expensive to repair. Simple steps include: opening the hood to check if the coolant level is sufficient, and carefully adding distilled water if it's low; if the fan isn't working, avoid forcing a restart and call for a tow truck instead. Safety should always come first—never push through while driving. Before every trip, make it a habit to check the temperature gauge and coolant level.

[DelKaylee]

To diagnose overheating issues, start with the components: the radiator may be clogged or leaking; a faulty water pump can stop coolant circulation; a stuck thermostat or loose belt also affects cooling. I usually check the temperature difference in hoses by hand, listen for abnormal noises from the water pump, and observe if the fan operates normally—a buzzing motor may indicate a fault. Prevent blockages by regularly cleaning the radiator mesh; during maintenance, have the water pump bearings and belt tension inspected. Don’t delay addressing issues, as overheating can damage the engine block.

[LaMolly]

Preventing overheating relies on daily maintenance. I replace the coolant and clean the radiator interior every six months; check the fan motor and adjust belt tension to avoid aging and breakage. While driving, pay attention to the temperature gauge changes, avoiding prolonged high-speed operation or idling. During regular maintenance, have someone inspect the water pump and thermostat; check the coolant level weekly to ensure it's normal. These small habits can significantly reduce risks, such as preparing the cooling system in advance during hot summer days, not waiting for problems to arise.