What Causes Severe Engine Vibration in Lavida Cars?
2 Answers
Severe engine vibration in Lavida cars indicates a vehicle issue. The causes and solutions for engine vibration are as follows: Possible factors causing engine vibration include: Apart from three-cylinder engine factors, other causes include excessive engine carbon deposits, and faulty or aged spark plugs and ignition coils. Solutions for engine vibration: The most common cause of car vibration is a dirty throttle body or excessive carbon buildup in fuel injectors. When there's too much carbon deposit inside the engine, the gasoline sprayed by cold start injectors gets largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and making ignition difficult. In this situation, the engine only starts easily after the carbon deposits become saturated with gasoline. After starting, the gasoline adsorbed on the carbon deposits gets drawn into the cylinders by the engine's vacuum suction for combustion, making the air-fuel mixture too rich. This alternation between lean and rich mixtures causes idle vibration after cold starts. In this case, owners should clean the fuel system and also check the idle control valve for carbon buildup. Inspect the working condition of spark plugs, high-voltage wires, and ignition coils. Poor ignition system performance or weak spark plug firing can also lead to such symptoms. When the ignition system is confirmed to cause idle vibration, check if spark plugs have excessive carbon deposits and need replacement. Check fuel supply pressure and whether the intake pressure sensor is functioning normally. Abnormal fuel pump pressure, incorrect intake pressure sensor readings, or poor sensor performance can all cause vehicle vibration. In such cases, check fuel pressure and replace components if necessary.
I’ve only driven my Lavida for two years, and it was terrifying when the engine shook like a sieve. It’s most likely an issue with the ignition system: the spark plugs are burnt out, excessive carbon buildup from prolonged use, or the ignition coils are leaking electricity and misfiring. Clogged fuel injectors are also common, especially with poor-quality gasoline. Carbon deposits accumulating on the pistons or intake valves can cause uneven combustion. Don’t overlook the engine mounts—if they’re aged or cracked, the shaking can get severe. Remember to check these parts during every maintenance session. If the shaking is severe, avoid driving to prevent loss of control—head straight to the 4S shop to scan for trouble codes. Replacing spark plugs or cleaning the fuel system can fix the problem; don’t delay until it requires major repairs.
