why does my Toyota Camry Eighth Generation (2018-present) vibrate when idling?

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is off.
• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect Engine Mounts

• Sub-steps:
  • Use a socket set to remove any covers obstructing access to the engine mounts.
  • Visually inspect engine mounts for cracks, separation, or rubber deterioration.
  • If damaged, remove the bolts securing the engine mount to the frame using a torque wrench.
  • Replace with new mounts and torque to manufacturer specifications.

3. Check and Clean IAC Valve

• Sub-steps:
  • Locate the IAC valve on the throttle body.
  • Disconnect the electrical connector and remove the mounting screws using a screwdriver.
  • Clean the valve with throttle body cleaner to remove carbon build-up.
  • Reinstall the IAC valve and reconnect the electrical connector.

4. Replace Spark Plugs (if necessary)

• Sub-steps:
  • Remove the engine cover if applicable.
  • Disconnect the ignition coils and remove them using a socket set.
  • Use a spark plug socket to remove the old spark plugs.
  • Inspect the old plugs for wear or fouling and install new plugs with the correct gap.
  • Reinstall the ignition coils and cover.

5. Verify Fuel Pressure

• Sub-steps:
  • Connect a fuel pressure gauge to the fuel rail.
  • Start the engine and monitor the fuel pressure reading.
  • If pressure is outside the manufacturer's specified range, inspect the fuel pump and filter for issues.