Why is the urea pump not making noise?
1 Answers
If the urea pump makes noise after the vehicle is parked, it indicates that the vehicle is retracting urea. If there is no noise after parking, it means the urea pump has malfunctioned. Here is some information about the urea pump: 1. Introduction: The urea pump is the core component of the SCR system, referred to as the "urea dosing pump." Its main function is to pump urea solution from the urea tank and transport it to the nozzle through the delivery pipeline. 2. Internal Composition: It mainly consists of a diaphragm pump, solenoid directional valve, pressure sensor, urea filter, electric heating system, lead frame, and other components. The exterior is composed of three urea solution pipelines: the spray pipe, return pipe, and inlet pipe.