my Toyota Corolla E210 (2019-2024) has a hard time accelerating on hills, why?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool before beginning work.

2. Clean or Replace Air Filter

• Remove the air filter housing cover using a socket set.
• Inspect the air filter for dirt and debris; replace if necessary.
• Install a clean air filter and reattach the housing cover.

3. Check and Replace Fuel Filter

• Locate the fuel filter in the fuel line.
• Use a wrench to disconnect the fuel lines carefully.
• Replace the old fuel filter with a new one and reconnect the lines, ensuring there are no leaks.

4. Clean Throttle Body

• Remove the intake duct to gain access to the throttle body.
• Use throttle body cleaner and a soft cloth to clean any carbon buildup.
• Reinstall the intake duct securely.

5. Inspect and Replace Spark Plugs

• Remove the ignition coil using a socket set.
• Take out the spark plugs using a spark plug socket.
• Inspect for wear and replace with OEM specifications.
• Reinstall the ignition coils properly.

6. Check Transmission Fluid

• Locate the transmission dipstick and check fluid level and condition.
• If low, add the correct type of transmission fluid as specified in the owner’s manual.
• If the fluid is burnt or dirty, consider a transmission fluid change.