What are the causes of unstable car idling?
1 Answers
The causes of unstable car idling are: 1. Severe engine carbon buildup; 2. Dirty throttle body or 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 unstable car idling: 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 body; 5. Replace aging engine components.