What causes the car body to shake during startup?
1 Answers
The reasons for car body shaking during startup are: 1. Dirty throttle body; 2. Excessive carbon deposits in fuel injectors; 3. Poor performance of ignition system, weak spark plug firing; 4. Abnormal fuel pump supply pressure; 5. Incorrect readings or poor performance of intake pressure sensor; 6. Aging engine mounts. Solutions for car body shaking during startup include: 1. Clean or replace the air filter; 2. Use a multimeter to measure resistance and replace wires with high resistance; 3. Ensure the engine operates within normal temperature range; 4. Clean fuel injectors; 5. Replace spark plugs; 6. Clean fuel system and idle speed motor; 7. Replace engine mounts.