Fuel Return Line: Testing and Inspection

Fuel, Vapor And Return Line Components (4WD-Turbocharged):

1. Check the hoses and pipes for cracking, bending, deformation or restrictions.
2. Check the canister for restrictions.
3. Check the fuel filter for restrictions and damage.

Fuel Rail, Injectors And Fuel Pressure Regulator Components:

4. Check the fuel rail at all of its attachment points for any sign of leakage.