why does my Toyota RAV4 hesitate during acceleration?

Solution

1. Preparation

• Gather all tools and parts required for the repair.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Fuel System Inspection

• Tools Required: Fuel pressure gauge, socket set.
• Sub-steps:
  1. Remove the fuel pump relay from the fuse box.
  2. Connect a fuel pressure gauge to the fuel rail service port.
  3. Reconnect the battery and turn the ignition to the "ON" position (do not start the engine) to check fuel pressure.
  4. Compare the reading to the manufacturer's specifications (usually between 30-50 psi for RAV4).
  5. If pressure is low, inspect the fuel pump and filter for clogs and replace if necessary.

3. Ignition System Repair

• Tools Required: Socket set, torque wrench.
• Sub-steps:
  1. Remove the engine cover to access the ignition components.
  2. Disconnect the ignition coils and unscrew them using a socket set.
  3. Replace any faulty spark plugs and ignition coils with new ones.
  4. Reinstall the ignition coils and secure them to the specified torque (usually around 80 inch-pounds).
  5. Reconnect the engine cover.

4. Throttle Body Cleaning

• Tools Required: Throttle body cleaner, soft cloth, screwdriver set.
• Sub-steps:
  1. Disconnect the throttle body connector and any vacuum lines attached.
  2. Unbolt the throttle body from the intake manifold.
  3. Spray throttle body cleaner onto the throttle plate and inside the throttle body, wiping clean with a soft cloth.
  4. Reinstall the throttle body and reconnect all connectors and vacuum lines.