my Toyota RAV4 XA40 (2013-2018) has a fuel smell inside the cabin, what's wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to ensure safety while working on the fuel system.
• Allow the vehicle to cool down, especially the engine and exhaust components.

2. Inspect and Replace Fuel Lines

1. Remove Engine Cover (if applicable):
   • Use a socket set to remove any bolts securing the engine cover.
2. Inspect Fuel Lines:
   • Visually check for cracks, wear, or leaks in the fuel lines.
3. Replace Damaged Fuel Lines:
   • If any lines are damaged, use a line cutter to remove the bad sections.
   • Install new fuel lines using appropriate clamps and ensure all connections are secure.
   • Torque the clamps to the manufacturer’s specifications (typically 15-20 inch-pounds).

3. Examine and Replace Fuel Injectors

1. Remove Fuel Rail:
   • Disconnect the fuel lines from the rail using a fuel line disconnect tool.
   • Unbolt the fuel rail from the engine using a socket set.
2. Inspect Fuel Injectors:
   • Check for leaks around the injectors and O-rings.
3. Replace Faulty Injectors:
   • If leaking, remove the faulty injector by pulling it out of the rail.
   • Install a new injector with new O-rings, ensuring proper lubrication for a good seal.
   • Reattach the fuel rail and reconnect fuel lines.

4. Check Fuel Filler Neck

1. Inspect Filler Neck:
   • Check the filler neck for cracks or corrosion.
2. Replace Filler Neck:
   • If damaged, remove the filler neck by unbolting it from the body and disconnecting any connecting hoses.
   • Install the new filler neck and reattach all connections securely.

5. Reconnect Battery and Test

1. Reconnect Battery:
   • Reconnect the negative terminal of the battery.
2. Test for Leaks:
   • Start the engine and visually inspect all connections for signs of leaks.
   • Perform a smoke test if necessary to identify any hidden leaks.