why does my Toyota RAV4 have poor acceleration after 80k miles

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and engage the parking brake.
• Allow the engine to cool if previously run.

2. Replace Air Filter

• Tools Required: Flathead screwdriver, replacement air filter.
• Remove the air filter housing cover using the screwdriver.
• Take out the old air filter and inspect for dirt or damage.
• Install the new air filter, ensuring it fits securely, and reattach the housing cover.

3. Clean Throttle Body

• Tools Required: Throttle body cleaner, soft cloth, socket set.
• Disconnect the negative battery terminal.
• Remove the intake duct connected to the throttle body.
• Spray throttle body cleaner onto a cloth and wipe the inside of the throttle body to remove carbon buildup.
• Reassemble the intake duct and reconnect the battery terminal.

4. Replace Spark Plugs

• Tools Required: Socket set, torque wrench, spark plug socket, anti-seize compound.
• Remove the ignition coil(s) by unbolting and disconnecting the wiring.
• Unscrew the old spark plugs using the spark plug socket.
• Apply anti-seize compound to the threads of new spark plugs and install them, tightening to the manufacturer’s torque specifications.
• Reinstall the ignition coil(s).

5. Check Fuel System

• Tools Required: Fuel pressure gauge.
• Connect the fuel pressure gauge to the fuel rail and turn the ignition on (do not start the engine).
• Check the fuel pressure reading against manufacturer specifications. Replace the fuel pump or filter if pressure is low.
• After testing, disconnect the fuel pressure gauge and ensure there is no fuel leakage.