What is the reason for the Haval H4 being unable to shift gears after a cold start?
1 Answers
The reason why the Haval H4 cannot shift gears after a cold start is: the high viscosity of the gear oil caused by low temperatures makes it difficult to shift gears, and it is recommended to go for maintenance in time. When starting the engine in the morning and shifting gears to drive, it is difficult to shift gears, so it is necessary to warm up the car for a few minutes before driving. The main reason for warming up the car is: after the car has been parked for a long time, the engine oil flows back to the oil pan at the bottom of the engine. Therefore, after ignition, the upper part of the engine is in a state of lack of lubrication without oil. It takes about 30 seconds after starting for the oil pump to transport the oil to the parts of the engine that need lubrication, such as the pistons, connecting rods, and crankshaft.