What Causes a Wuling Hongguang to Suddenly Stall While Driving?
3 Answers
Fuel pump issues, spark plug problems, and engine computer malfunctions can all cause a Wuling Hongguang to suddenly stall while driving. Fuel pump issue: The fuel pump, also known as the gasoline pump, supplies the engine with the necessary fuel to ensure proper operation. When the fuel pump fails, the vehicle may suddenly stall while driving. The solution is to replace the fuel pump. During the warranty period, the 4S dealership will provide free repair services, or you can opt to replace the fuel pump at an auto parts store. Spark plug issue: The spark plug's function is to ignite the air-fuel mixture in the engine cylinder. It generates high-voltage electricity to create a spark, which ignites the mixture, causing combustion that drives the piston movement and powers the engine. If the spark plug malfunctions, the vehicle may suddenly stall while driving. The solution is to replace the spark plugs. You can go to an auto parts store to replace a set of spark plugs. Engine computer issue: The engine computer acts as the brain of the engine, transmitting numerous functional commands. If the engine computer fails, the vehicle may suddenly stall while driving. The solution is to replace the engine computer. During the warranty period, the 4S dealership will provide free repair services. If the warranty has expired, you can have the engine computer replaced at a repair shop.
I've encountered this issue quite a few times, mostly due to fuel pump or ignition coil problems. When a Wuling Hongguang suddenly stalls while running, the most common cause is the fuel pump failing to supply fuel, especially when the fuel level is low and it sucks up debris clogging the filter. Aging ignition coils can also cause an instant power cut, with the dashboard flashing twice first. Also, check the crankshaft position sensor—if it's dirty or gets wet, it can cause the computer to misjudge and stall. Faulty intake pressure sensors and poor contact in the main relay are also common. I remember one time, a customer's car had difficulty starting after stalling, and replacing the canister purge valve fixed it. The most important thing is not to panic when stalling—slowly pull over, and if restarting doesn't work, don't force it. Calling a tow truck is the safest bet.
A friend who delivers goods with a Hong Guang told me that sudden stalling might be due to loose battery terminals. Don't laugh, it's true that some people didn't tighten the screws enough and they got loose from the bumps. Also, pay attention to fuel quality; low-quality gas from small stations with more impurities can easily clog the fuel injectors. A clogged crankcase ventilation valve can also cause the mixture to become too rich and stall. The engine compartment of this car isn't very well sealed, so it's prone to dust accumulation. A failed belt tensioner might cause the belt to jump teeth, leading to sudden shutdown—older cars should be checked for this. I recommend cleaning the throttle body and idle speed control valve regularly during routine maintenance, especially for vehicles frequently driven on construction sites. After stalling, remember to turn the key all the way to cut off the power, wait for half a minute, and then try restarting.
