What Causes Engine Vibration in Wuling Hongguang?
4 Answers
Wuling Hongguang engine vibration is caused by: 1. Poor operation of the exhaust gas recirculation valve; 2. Incorrect timing due to chain elongation without high-temperature exposure; 3. Issues with the throttle or cylinder pressure (new vehicles won't have this problem, older vehicles may need cleaning or replacement); 4. Faulty oxygen sensor operation, mainly because this vehicle's oxygen sensor magnetic group ring is installed on the crankshaft and may vibrate when worn. The Wuling Hongguang is SAIC-GM-Wuling's first self-developed crossover product between commercial vehicles and passenger cars, featuring a streamlined exterior design and a versatile, practical spacious cabin.
I've driven a Wuling Hongguang for over a decade and have encountered engine shaking a few times, usually due to issues with the ignition system, especially when the spark plugs are worn out or the ignition coils fail. When spark plugs accumulate too much carbon buildup from prolonged use and fail to ignite properly, it causes the engine to shake. Another common cause is poor fuel quality or clogged fuel injectors. Using cheap fuel for an extended period can lead to uneven fuel injection, which also triggers shaking. I recommend first checking the condition of the spark plugs yourself—replacing them isn't expensive—and then trying a better gas station for a few days. If the shaking persists, it's worth inspecting the electrical connections or engine mounts, as loose components can be problematic. For older cars, paying attention to these details regularly can save you from costly major repairs.
I bought a Wuling Hongguang last year, and recently the engine keeps shaking while driving, which makes me a bit nervous, worrying if it might break down halfway. I asked a few car-savvy friends, and they said it might be related to the fuel system, such as clogged fuel lines or a dirty air filter. Dirty fuel leads to uneven fuel supply, causing the engine to run unbalanced. Others mentioned that too much carbon buildup could be blocking the piston movement, resulting in the shaking sensation. I plan to clean the throttle body and air filter first—doing it myself is cheaper, and if that doesn’t work, I’ll take it to a repair shop for inspection. After all, the car is still fairly new, so it’s best to address the issue early before it gets worse. Safety comes first when driving, so this can’t be delayed.
I commute with a Wuling Hongguang, and when the engine vibrates, the car becomes unstable, especially noticeable when waiting at a red light. It's most likely an issue with the intake system, such as a clogged air filter preventing air from entering, causing an imbalance in the air-fuel mixture. I've also seen cases where the mounts are worn out, leading to instability if they're not securely fixed. For a simple fix, try tightening the screws yourself; if that doesn't work, replace the parts. Regular maintenance can prevent these issues, saving you time and effort.
