CHECK FUEL DELIVERY LINE (LOW PRESSURE LINE).

Check for damage in fuel delivery line (low pressure line), leaks at connection, and air entering into line.

NOTE:

To check for air in the system, replace the fuel hose between the fuel filter assembly to the fuel pump with an appropriate size clear oil proof/heat proof hose, and check the condition of the fuel when the engine is idled. After completing the check, make sure to restore the original fuel hose, and fill the fuel system by operating the priming pump.

QUESTION

Is there damage in fuel delivery line (low pressure line), leaks at connection, and air entering into line?

Yes No

Identify the faulty parts, and repair.

NOTE:

In this case, repair the following item:

• Air entering by fuel running out: start the engine to bleed the air completely.

• Other than air entering by fuel running out: replace the faulty part.

Inspect using “Diagnostic Procedure without Diagnostic Trouble Code (DTC)”.