Inspection should include
- checking the fuel pressure with a scan tool, according to manufacturer guidelines
- draining the water separator and checking for leaks
- checking the connections on the fuel heater base for coolant leaks
- cleaning the ECM of oil and debris to aid in cooling the electronics
- tightening all hardware
- determining any additional needed action.
ASE 3: I. Diesel Engines: G. Fuel System (P-1)
Process/Skill Questions:
- What happens if the water separator is not drained regularly?
- What is the purpose of a fuel oil heater?
- What liquid is used to cool the ECM?