Fuel Lift Pump Pressure Check

1. Install a tee adapter at the injection pump.
2. Connect a pressure gauge with a dial indication of 0-103 kPa (0-15 psi) to the tee adapter.
3. Start the engine and measure the fuel pressure.

- If the fuel pressure is a least 27 kPa (4 psi), continue to step 4.
- If the pressure is less than 27 kPa (4 psi), refer to Fuel Pump Circuit Diagnosis before replacing the lift pump. Testing and Inspection

4. Remove the pressure gauge and the tee adapter.
5. Install the inlet pipe.
6. Clean any of the fuel spillage.
7. Operate the engine.
8. Check for any fuel leaks.