1. Inside the hood is the place where the most secrets are hidden. When opening the hood, check carefully whether there is any paint on the inside of the hood. If there are traces of paint, it means that the cover has hit. Then check the I-beam above the engine water tank and the two longitudinal beams or the two inner side beams below the engine body. Under normal circumstances, there should be traces of circular spot welding in these places. If the spot welding shapes are different in size, this The car may have been hit. In addition, whether the waterproof rubber strip is smooth is also the basis for judging whether the vehicle is injured.
2. Check the water tank. Open the water tank cover to see if there are debris, oil and other debris floating on the surface of the cooling water. If there is oil floating, the oil may have penetrated into the cooling water. If there is rusty dust, it means that the rust in the water tank is very serious.
3. Check the engine compartment and below for oil stains and oil leakage traces. If there is oil contamination, it may be the central part of the engine, such as the cylinder head gasket, that is leaking oil.
4. Feel the performance of the engine. After the engine is started, when you step on the accelerator pedal, it feels that it reacts very slowly. There may be a problem with the fuel or the starting system. There is also the need to discern the sound of the engine carefully. The general principle of inspection is that the sound of the engine should not be chaotic. You should pay special attention to whether you hear a small and short knocking sound or a low "rumble" sound.
It is best to buy a used car at a professional second-hand car sales place to ensure the quality and safety of the used car.
