why does my Toyota Highlander XU70 (2020-Present) have a fuel odor

Solution

1. Preparation

• Tools Required: Collect necessary tools, including an OBD-II scanner, socket set, and safety goggles.
• Safety Warnings: Disconnect the battery before working on the fuel system to prevent sparks. Ensure the engine is cool before beginning any inspection.

2. Addressing Fuel Leaks

• Sub-step 1: If a leak is found, replace the damaged fuel line or component. Use a fuel line cutter and appropriate hose clamps for secure connections.
• Sub-step 2: For wet spots around the fuel injectors, replace the O-rings or seals. Remove the fuel rail by loosening the bolts and gently pulling it off the intake manifold.
• Sub-step 3: If the fuel tank is leaking, it may require removal. Drain the fuel, disconnect the fuel lines, and remove the tank securing bolts to replace or repair it.

3. Repairing EVAP System Issues

• Sub-step 1: If cracks or damage are found in the EVAP hoses, replace them with OEM or equivalent parts to ensure proper function.
• Sub-step 2: If the EVAP canister is faulty, remove it from its mounting bracket and replace it with a new unit. Ensure all connections are tight.