General Engine Troubleshooting - WACKER Group LTC 4 Repair Manual

LTC Repair

5.14 General Engine Troubleshooting

Possible Cause
Low fuel level
Fuel supply/return lines
clogged
Clogged fuel tank vent
Fuel pump faulty
Fuel contaminated with air
Unit injector(s) faulty/worn
Unit injector settings incorrect
Injection pump rack sticking
Oil level too high
Improper oil viscosity
Oil diluted by fuel
Oil pressure relief valve faulty
Oil pick-up tube clogged
Oil pump air contaminated at
pick-up tube
Glow plugs faulty
Glow plug controller faulty
Glow plug relay inoperable
Starter defective
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Lombardini Engine Troubleshooting
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Symptom
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