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What are the causes of car idle vibration?

1 Answers

JayceMarie

07/30/25 1:02am

The causes of car idle vibration are: 1. Severe engine carbon deposits; 2. Dirty throttle or excessive carbon deposits in the fuel injectors; 3. Faulty spark plugs, high-voltage wires, or ignition coils leading to poor ignition system performance; 4. Unstable oil pressure, insufficient fuel pump supply pressure, or incorrect readings from the intake pressure sensor; 5. Clogged fuel lines causing insufficient fuel supply; 6. Aging engine components. Solutions for car idle vibration: 1. Clean engine and idle motor carbon deposits; 2. Clean the fuel system; 3. Replace spark plugs, high-voltage wires, and ignition coils; 4. Clean the air filter and throttle; 5. Replace aging engine components.

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