If the diesel engine preheater needs to be installed, you need to go to the car shop or repair shop of the car to install it to avoid damage to the preheater components caused by self-installation.
Regularly check the amount of coolant in the radiator and expansion tank, and replenish it in time when the liquid level is low. Because the lack of coolant in the diesel engine cooling system will affect the heat dissipation effect of the diesel engine, resulting in high temperature of the diesel engine.
Poor heat dissipation of the radiator is the most common phenomenon of debris attached to the surface of the radiator. The adhered debris will reduce the heat dissipation area of the radiator, and the windward area of the radiator will decrease, resulting in a reduction in the heat dissipation capacity of the radiator and high temperature of the diesel engine. You can go to the car shop for cleaning. Broken or loose connection of the water tank connected to the water pipe will cause water leakage, which will block the water circulation at this time, and cause the engine to boil in severe cases.