Subaru Crosstrek Service Manual: Fuel system trouble in general Inspection

Insufficient fuel supply to fuel injector

a. Fuel pump does not operate.

Defective terminal contact

Inspect contact, especially ground, and tighten it securely.

Trouble in electromagnetic or electronic circuit parts

Replace the faulty parts.

b. Decline of fuel pump function

Replace the fuel pump.

c. Clogged fuel filter

Replace the fuel filter. Clean or replace the fuel tank if necessary.

d. Clogged or bent fuel line pipe, hose or tube

Clean, correct or replace the fuel line pipe, hose or tube.

e. Air is mixed in fuel system.

Check the fuel line connections, correct or replace the defective part.

f. Damaged diaphragm of pressure regulator

Replace the fuel filter assembly.

Leakage or blow out of fuel

a. Loose connections of fuel line pipe, hose or tube

Check the fuel line connections, correct or replace the defective part.

b. Cracked fuel line pipe, hose or tube

Replace the fuel line pipe, hose or tube.

c. Cracked fuel tank or defective welding part

Replace the fuel tank.

d. Clogged or bent fuel line pipe, hose or tube

Clean, correct or replace the fuel line pipe, hose or tube.

Gasoline smell inside of compartment

a. Loose connections of fuel line pipe, hose or tube

Check the fuel line connections, correct or replace the defective part.

b. Defective gasket of fuel saucer or fuel filler pipe assembly

Correct or replace the gasket.

c. Defective canister

Replace the canister.

Defective fuel gauge

a. Defective operation of fuel level sensor

Replace the fuel level sensor.

b. Defective operation of combination meter Basic Diagnostic Procedure > PROCEDURE">

Replace the combination meter.

Noise

a. Large operation noise or vibration of fuel pump

Replace the fuel pump.