2004 Hyundai XG350L – Workshop Service & Repair Manual

1. Check the Idle Air Control Valve (IACV): This component regulates engine idle speed. If it’s faulty, it may cause the engine to race. Clean or replace it as needed.
2. Inspect the Throttle Body: A dirty or malfunctioning throttle body can affect idle speed. Clean the throttle body to ensure smooth operation.
3. Examine Vacuum Lines: Leaks in the vacuum lines can cause irregular idle speeds. Inspect and replace any damaged lines.

Our manual provides detailed instructions for diagnosing and fixing these issues.

1. Check for Error Codes: Use an OBD-II scanner to retrieve error codes related to the airbag system.
2. Inspect Airbag Connections: Ensure that all connectors and wiring related to the airbags are secure and undamaged.
3. Visit a Professional: If the issue persists, consult a professional mechanic as the airbag system is crucial for safety.

Our manual includes troubleshooting steps and diagrams to assist with airbag system diagnostics.

1. Check the Throttle Position Sensor (TPS): A malfunctioning TPS can cause unintended acceleration. Test and replace it if necessary.
2. Inspect the Accelerator Pedal: Ensure that the pedal is not sticking and that it returns to its normal position smoothly.
3. Look for Obstructions: Check for any debris or objects that might be interfering with the throttle linkage.

Our manual provides a step-by-step guide to diagnosing and addressing acceleration issues.

1. Check Transmission Fluid: Regularly check and top up the transmission fluid level. Replace it according to the service schedule.
2. Inspect for Leaks: Look for any signs of transmission fluid leaks under the vehicle.
3. Monitor Shifting Performance: Ensure that the transmission shifts smoothly without slipping or hard shifts.

Refer to our manual for detailed transmission maintenance procedures and fluid specifications.

1. Change Engine Oil: Follow the recommended intervals for oil changes and use the correct oil type.
2. Replace Air Filters: Replace the engine and cabin air filters regularly to maintain air quality and engine performance.
3. Inspect Brakes: Check brake pads and rotors for wear and replace them as needed.

Our manual provides comprehensive maintenance schedules and procedures to keep your vehicle in top condition.