why does my Genesis G70 make a knocking noise at idle

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, mechanic's stethoscope, engine oil, replacement spark plugs, engine mounts (if needed).
• Safety Warnings: Disconnect the battery before working on electrical systems. Allow the engine to cool before inspecting any components.

2. Check and Replace Engine Oil

• Sub-steps:
  1. Remove the oil dipstick and check the oil level.
  2. If the oil is low, add the recommended engine oil type (check the owner's manual).
  3. If the oil is dirty or old, drain the old oil and replace with fresh oil.
  4. Replace the oil filter using a filter wrench.

3. Inspect and Replace Engine Mounts (if necessary)

• Sub-steps:
  1. Raise the vehicle and secure it with jack stands.
  2. Visually inspect the engine mounts for cracks or signs of wear.
  3. If damaged, remove the bolts securing the engine mount to the chassis and engine.
  4. Replace with new engine mounts and torque bolts to the manufacturer's specifications.

4. Replace Spark Plugs (if necessary)

• Sub-steps:
  1. Remove the ignition coil cover if applicable.
  2. Disconnect the ignition coils, and remove the bolts securing them.
  3. Extract the old spark plugs using a spark plug socket.
  4. Install new spark plugs, ensuring they are gapped correctly and torque to specifications.

5. Test Timing Components

• Sub-steps:
  1. Inspect the timing belt for wear or looseness.
  2. If the timing belt is damaged, remove the old belt and replace it with a new one following the manufacturer’s timing procedure.
  3. For timing chains, check for slack and replace if necessary.