Fuel Tank Cleaning
Important:
• | Only use oil free compressed air to blow out the fuel pipes. |
• | Inspect the fuel tank internally and clean the fuel tank if you find a
plugged fuel filter. |
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Relieve the fuel system pressure. Refer to
Fuel Pressure Relief
.
- Drain the fuel tank. Refer to
Fuel Tank Draining
.
- Remove the fuel tank. Refer to
Fuel Tank Replacement
.
- Remove the fuel sender assembly. Refer to
Fuel Sender Assembly Replacement
.
- Inspect the fuel pump strainer. Replace a contaminated strainer and inspect
the fuel pump.
- Inspect the fuel pump inlet for dirt and debris. Replace the fuel pump
if you find dirt or debris in the fuel pump inlet.
Important: When flushing the fuel tank, handle the fuel
and water mixture as a hazardous material. Handle the fuel and water mixture in accordance
with all applicable local, state, and federal laws and regulations.
- Flush the fuel tank with hot water.
- Pour the water out of the fuel sender assembly opening. Rock the tank
to be sure that removal of the water from the tank is complete.
- Remove the fuel rail assembly. Refer to
Fuel Injection Fuel Rail Assembly Replacement
.
- Drain the fuel from the fuel rail. It will be necessary to remove the
fuel injectors from the fuel rail to properly clear all debris from the fuel rail
and fuel injectors. Use light shop air to remove any debris from the fuel rail and
injectors.
- Replace the fuel injector O-rings.
- Use light shop air in the opposite direction of the fuel flow in order
to remove any debris from the fuel lines. Catch any fuel from the fuel lines with
an approved gasoline container.
- Install the injectors to the fuel rail.
- Install the fuel rail assembly onto the engine. Refer to
Fuel Injection Fuel Rail Assembly Replacement
.
- If equipped with a serviceable fuel filter, replace the fuel filter. Refer
to
Fuel Filter Replacement
.
- Install the fuel sender assembly. Refer to
Fuel Sender Assembly Replacement
.
- Install the fuel tank. Refer to
Fuel Tank Replacement
.
- Refill the fuel tank.
- Install the fuel filler cap.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
Important: If the fuel pump or sender assembly was not
replaced, purge the fuel sender assembly.
- Purge the fuel sender assembly.
22.2. | Connect a length of hose to the fuel feed pipe. |
22.3. | Insert the other end of the hose into an empty 3.8 liter (1 gallon)
approved gasoline container. |
22.4. | Add 23 liters (6 gallons) of clean fuel into the fuel tank. |
22.5. | Turn on the fuel pump using the scan tool until 2 liters (1/2 gallon)
of fuel flows into the fuel container. |
- Inspect for leaks.
23.1. | Turn the ignition switch ON for 2 seconds. |
23.2. | Turn the ignition switch OFF for 10 seconds. |
23.3. | Turn the ignition switch ON. |
23.4. | Inspect for fuel leaks. |