6 A fuel filter component is clogged. Replace the fuel filter component or the filter element Fuel system There is air in the fuel system. Release the air from the fuel system Fuel feed pump The fuel feed pump is broken. Repair or replace the fuel feed pump The fuel flows into the injection pump. Fuel The fuel in service is incorrect. Use the correct fuel There is water in the fuel system. Replace the fuel Fuel system There is air in the injection pump. Release the air from the fuel system Fuel injector The fuel injector is jammed. Replace the fuel injector The opening pressure of fuel injector is too low. Atomizing is bad.
Adjust or replace the fuel injector Injection pump The damage of fuel injector results in fuel dripping after injection. Replace the delivery valve Something is wrong with the control rack of injection pump. Repair or replace the control rack of injection pump The injection pump plunger is worn or jammed. Repair or replace the injection pump plunger assembly The drive shaft of injection pump is jammed or damaged. Replace the drive shaft The governor spring of injection pump is jammed. Replace the governor spring of injection pump 4. Quick start system Preparation work 1. Disconnect the connector of temperature switch 2.
Verify whether the glow plug is power on a) Confirm the start switch is at OFF position b) Use voltmeter to connect cylinder wall with any glow plug c) Switch the start switch to the ON position If the glow plug is power on, the voltmeter indicates 12 V. If the pointer of voltmeter doesn’t move, it means the glow plug is power off. 3. Trouble shooting The glow plug is power on. Check Causes Remedies The indicator lamp of glow plug is off. The indicator lamp is broken. Replace the indicator lamp Quick start timer The quick start timer is broken. Replace the quick start timer The indicator lamp of glow plug is on for 0.3 s. The quick start timer is broken. Replace the quick start timer