Mitsubishi D04EG-T Troubleshooting
| Engine Model: Mitsubishi D04EG-T |
| Engine Type: 4-cycle inline 4-cylinder turbocharged liquid-cooled diesel |
| Total Displacement: 203.3 cu.in (3.33 L) |
| Rated Engine Power: 99 Hp (74 kW) at 2200 rpm |
| Fuel System Type: Common rail fuel injection |
____________________________________________________________________________________
| Engine difficult to start or doesn't start |
Fuel filter element is dirty - Install new filter element.
Air in the fuel lines - Bleed the fuel lines.
Dirty or damaged injection nozzles - Clean or replace injection nozzles.
Fuel injection pump is damaged - Repair or replace injection pump.
Improper valve timing - Use correct valve timing adjustment.
Fuel pipes are dirty - Service fuel pipes.
Unadjusted injection timing - Adjust according to specifications.
Worn piston rings and cylinder - Change defective parts.
| Engine starts and stops suddenly |
Clogged fuel filter - Change filter element.
Fuel injection pump is not working correctly - Rebuild or replace pump.
Air filter is clogged - Clean or replace element.
Incorrect nozzle opening pressure - Set it correctly.
| Engine stops suddenly during operation |
Timing of fuel injection pump is incorrect - Adjust according to specifications.
Dirty fuel filter - Service or replace the filter.
Engine is not preheated - Warm up engine as required.
Injection nozzles are jammed or clogged - Repair or replace injection nozzles.
Wrong adjustment of low idle speed - Normalize low idle speed.
Excessive valve clearance - Adjustment procedure required.
Fuel injection pump is defective - Replace or repair injection pump.
Faulty or dirty injection nozzles - Clean or replace injection nozzles.
Fuel hoses or lines are dirty - Fuel hoses and lines must be clean.
Dirty air cleaner - Service or replace the air filter.
Cylinder head gasket defective - Replace cylinder head gasket.
Injection timing is improper - Adjust injection timing as required.
Fuel injection pump is broken - Rebuild or replace pump.
Any of moving engine parts is worn - Repair or replace defective parts.
Clogged radiator fins or damaged radiator cap - Clean radiator or replace cap.
Insufficient coolant - The cooling system needs to be refilled and checked for faults.
Fan belt slipping or worn - If necessary, replace the belt.
Engine oil level is low - Add oil to the engine crankcase.
Leaking cylinder head gasket - Gasket should be replaced.
Unadjusted injection timing - Adjust injection timing as required.
| Insufficient oil pressure |
Not enough oil in the engine - Need to add oil.
Defective oil pump - Check and replace if necessary.
Oil filter clogging - Change or service engine oil filter.
Relief valve is defective or dirty - Relief valve need to be replaced or cleaned.
Excessive oil clearance of crankshaft bearing - Inspect and replace or repair faulty parts.
Crankpin bearing clearance is excessive - Inspect and change or repair worn components.
| Engine using too much oil |
Oil leakage: Worn seals or gaskets - Change worn parts according to specifications.
Oil viscosity is wrong - Fill up with the correct oil viscosity.
Piston rings are seized or worn - Piston rings replacement required.
Worn valve guides and valve stems - Install new valves.
Pistons or cylinder liners are scuffed - Check pistons and liners, install new parts as required.
| Engine knocking sound or abnormal noise |
Engine is not fully warmed up - Normalize the temperature by warming up the engine.
Low engine oil level - Add oil to the engine crankcase.
Timing of fuel injection pump is incorrect - Check the fuel injection pump timing adjustment.
Piston wear or scoring - Pistons need to be replaced.
Misaligned or faulty connecting rod - Need to replace or align the connecting rod.
Battery power is low - Charge the battery.
Battery discharges quickly - Battery needs service or replacement.
Disconnected wires or corroded battery terminals - Connect cables correctly or replace terminals.
Battery is low or faulty - Change or recharge battery.
Battery cables are disconnected or incorrectly connected - Check cables and connect as needed.
Low battery power - Recharge the battery.
Starter motor failing - Starter should be replaced.
____________________________________________________________________________________
| Industrial Engines Technical Specifications |
| Car Engines Technical Specifications |
| Small Engines Technical Specifications |
| Outboard Engines Technical Specifications |
