FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Fuel System Trouble in General
INSPECTION
Trouble | Possible cause | Corrective action |
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. |
NOTE:
• When the vehicle is left unattended for an extended period of time, water may accumulate in the fuel tank. Fill fuel fully to prevent the problem.
• In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop to 0°C (32°F) or less throughout the winter season, use a water removing agent in the fuel system to prevent freezing fuel system and accumulating water.
• When water is accumulated in fuel filter, fill the water removing agent in the fuel tank.
• Before using water removing agent, follow the cautions noted on the bottle.
Specification
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Inspection
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