China Naming Network - Eight-character query< - What is the reason why the engine speed reaches 2000 rpm before the water passes through the warm air pipe in Jie Jun, China?

What is the reason why the engine speed reaches 2000 rpm before the water passes through the warm air pipe in Jie Jun, China?

Hello! There are several situations! First, there is no thermostat installed. The second thermostat is broken. The third heating tank is blocked! BBA Mercedes-Benz BMW Audi car wishes you a happy life! Health and safety! The financial resources are rolling! If there is something wrong with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.