my Toyota Highlander Third Generation (2014-2019) has a strong smell of gas, what's wrong?

Solution

1. Preparation

• Gather tools and parts needed.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical sparks.

Tools Required:

• Socket set
• OBD-II scanner
• Torque wrench
• Fuel pressure gauge
• Flashlight

2. Inspect Fuel Lines

• Visually examine the fuel lines for any signs of wear or leakage.
• Tighten any loose connections and replace damaged sections of the fuel line.
• Use a fuel pressure gauge to check for proper fuel pressure.

3. Check Fuel Injectors

• Remove the engine cover if necessary to access the fuel injectors.
• Inspect each injector for signs of leakage. Replace any that are damaged or leaking.
• Clean the injectors using an appropriate cleaning solution if needed.

4. Inspect the Fuel Tank

• Safely raise the vehicle using jack stands.
• Inspect the fuel tank for cracks or rust. Replace the fuel tank if any damage is found.
• Check for loose or damaged fuel tank straps and replace if necessary.

5. Examine the EVAP System

• Locate the EVAP charcoal canister and inspect for cracks or blockages.
• Test the purge valve for functionality. Replace it if it is stuck open or closed.
• Clear any blockages in the EVAP lines to ensure proper operation.

6. Reassemble and Test

• Reinstall any components removed for inspection.
• Reconnect the battery and ensure all connections are secure.
• Start the engine and monitor for any signs of fuel odor or leaks.