Symptoms of a Faulty Wuling B12 Check Valve?

[Percy]

Symptoms are generally quite noticeable. If there is a significant amount of white or blue smoke coming from the exhaust pipe, accompanied by engine shaking, unstable idle speed, and other similar phenomena, it is highly likely that the vehicle's check valve is damaged. Here is some related information: 1. Check Valve: A check valve allows fluid to flow only in the direction of the inlet, preventing backflow from the outlet. It is commonly known as a one-way valve or non-return valve. It is used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed air. There are two types of check valves: straight-through and right-angle. The straight-through check valve is installed in pipelines via threaded connections. The right-angle check valve comes in three forms: threaded connection, plate connection, and flange connection. A check valve is also known as a non-return valve or one-way valve. It is used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed air. 2. Hydraulic Control Check Valve: A hydraulic control check valve, also known as a locking valve or pressure-holding valve, functions similarly to a standard check valve by preventing reverse flow of oil. However, in hydraulic circuits where reverse flow is required, control oil pressure can be used to open the check valve, allowing bidirectional flow. Hydraulic control check valves use a conical valve core, ensuring excellent sealing performance. When a hydraulic circuit needs to be sealed, this valve can act as a one-way lock to maintain pressure. There are two types of hydraulic control check valves based on control oil leakage: internal and external. Internal leakage types are used in circuits where there is no back pressure at the reverse flow outlet; otherwise, external leakage types are used to reduce control oil pressure.