What is the solution for Emgrand idle vibration?
4 Answers
It may be related to the quality of the gasoline used, or the idle speed is unstable or too low. It is recommended to clean the throttle body, and after cleaning, reset the throttle position. It could also be caused by excessive engine carbon deposits, which require cleaning with a specialized carbon cleaner. If the vibration is severe and the engine fault light is on, it is recommended to go to a nearby repair shop to use a computer to check the fault codes and data stream. Check whether the engine has a misfire, whether the spark plugs are worn out, whether the ignition coils are aged, and whether there is any leakage in the cylinder wires.
After driving for so many years, my Emgrand has also had the issue of idle vibration. The most common causes are aging spark plugs or carbon buildup. Replacing the spark plugs usually solves the problem. If the fuel injectors are clogged, cleaning them can restore normal operation. For heavy carbon deposits, using additives or cleaning the throttle body can help. Worn engine mounts can cause severe shaking, and replacing them will eliminate the issue. A dirty or faulty throttle position sensor can also lead to unstable idle; cleaning or replacing it should fix the problem. Sometimes, a dirty air filter affects airflow—try replacing the filter. Always use fuel from reputable gas stations and avoid low-quality gasoline. If you're not confident in your DIY skills, it's best to visit a 4S shop or a reliable repair shop for diagnosis instead of tinkering on your own. Regular maintenance is key—check these components every 5,000 kilometers.
When encountering idling vibration in an Emgrand during car repair, it is mostly caused by ignition system failure. Priority should be given to checking whether the spark plugs are worn out; try replacing them with new ones. If the spark plugs are not the issue, it might be a faulty ignition coil, and replacing it will solve the problem. Next, inspect the fuel injectors; clogging can lead to uneven fuel injection, and cleaning or replacing the injectors will show immediate results. Excessive carbon buildup on the throttle body can cause inaccurate throttle positioning at idle; disassemble and clean it. If the engine mounts are not damping well, replace the mount pads. Check the engine's intake system to ensure the air filter is clean. For excessive carbon deposits, adding a cleaning agent and driving at high speed can help flush them out. Abnormal engine sensors, such as the crankshaft position sensor, can also cause vibration; use a diagnostic tool to read the codes and replace them if necessary. It is recommended to pay attention to fuel quality and road conditions daily to avoid excessive carbon buildup from low-speed driving.
My Emgrand idles very roughly, but I managed to fix it myself. First, I connected an OBD scanner to check for trouble codes—it's usually an issue with the fuel injectors or spark plugs. Replacing spark plugs is simple; just buy the matching model and install them yourself. For cleaning the throttle body, use a dedicated cleaner spray and wipe. If the fuel injectors are clogged, add a fuel additive to the tank and drive for a while. If the engine mounts are worn, replacing them with aftermarket parts isn't too expensive. For heavy carbon buildup, take the car on the highway and rev it for a few minutes. Using 95-octane fuel regularly helps reduce carbon deposits.
