What Causes a Wuling Hongguang to Suddenly Stall While Driving Normally?
2 Answers
Wuling Hongguang suddenly stalling during normal operation may be caused by excessive carbon buildup in components such as the throttle body, idle speed control valve, intake valves, intake manifold, combustion chamber, spark plugs, and fuel injectors. Relevant explanations are as follows: 1. Cause: Carbon deposits can block the idle passage, causing the idle speed control valve to stick or exceed its adjustment range, leading to low idle speed, unstable idle, and engine stalling when releasing the throttle. 2. Precautions: Pay attention to checking whether the fuel injectors are leaking. Fuel injectors constantly in the fuel supply state will cause an overly rich air-fuel mixture during low-speed driving, resulting in unstable idle speed after releasing the throttle. If the condition worsens, it may lead to engine stalling.
Last time I was delivering goods in my Wuling Hongguang, I encountered this issue—suddenly stalled while driving. First, I checked the fuel pump because the Wuling Hongguang's fuel pump is positioned low and prone to sucking up debris from the bottom of the fuel tank. Then, I inspected the ignition coils and spark plugs, as excessive carbon buildup can cause poor ignition. If the alternator belt is loose, it can also drain the battery and lead to stalling. Oh, and the crankshaft position sensor failure is the most common issue; if it fails, the ECU won't know when to ignite. In the end, I found out the throttle was too dirty and stuck—cleaning it fixed the problem. Older cars especially need attention to sensor and fuel system maintenance. Parts for this car are cheap, but basic upkeep requires extra care.
