Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Symptoms And Causes: Inspection
| Symptoms | Problem parts etc. | Possible cause |
|---|---|---|
| Insufficient fuel supply | Fuel pump fuse | Blown-out fuse |
| Fuel pump relay | Faulty relay operation | |
| Fuel pump | Faulty pump operation | |
| Poor contact of connector | ||
| Fuel filter | Clogging of filter | |
| Fuel injector | Clogging or malfunction of fuel injector | |
| Fuel line pipe, hose or tube | Clogging or deformation of pipe, hose or tube | |
| Pressure regulator | Seized or damaged diaphragm | |
| Air in the fuel system | Fuel percolation or excessive fuel shortage in tank | |
| Fuel leakage | Fuel pump assembly | Defective gasket or improper installation of fuel pump assembly |
| Fuel sub level sensor | Defective gasket or improper installation | |
| Fuel line pipe, hose and tube | Hole, cracking or improper installation of pipe, hose or tube | |
| Fuel tank | Hole, cracking in tank | |
| Gasoline smell inside of compartment | Fuel line pipe, hose and tube | Hole, cracking or improper installation of pipe, hose or tube |
| Service hole cover | Deformed cover, defective gasket or improper installation
CAUTION:
Check that no fuel leakage occurs. |
|
| Saucer COMPL | Damage or improper installation of saucer | |
| Defective fuel gauge display | Fuel level sensor or fuel sub level sensor | Poor contact at resistance part |
| Seized or deformed arm | ||
| Deformed or damaged float | ||
| Connector connection is improper. | ||
| Combination meter | Defective combination meter | |
| Noise | Fuel pump | Defective pump or improper installation |
- Water generated in the fuel tank may be frozen at cold condition.
It is preferable to keep the tank full with fuel if possible and to use a water removing agent or anti-freeze agent, etc. if necessary.
- If a water removing agent or anti-freeze agent, etc. is used, follow the instruction for use.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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