International DT466E Troubleshooting
| Engine Model: International Navistar DT466E |
| Engine Type: 4-cycle inline 6-cylinder turbocharged liquid-cooled diesel |
| Total Displacement: 466 cu.in (7.6 L) |
| Rated Engine Power: 175-275 Hp (130-205 kW) at 2300 rpm |
| Fuel System Type: Hydraulic electronic unit injector (HEUI) |
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| Engine starts up hard or will not start |
Fuel filter element clogging - Service the filter.
Air in the fuel system - Air bleeding.
Fuel injection nozzles are faulty or clogged - Replace injection nozzles.
Fuel injection pump is broken - Rebuild or install a new injection pump.
Incorrect valve timing - Set the valve timing correctly.
Clogged fuel pipes - Service or replace fuel pipes.
Injection timing is wrong - Set the injection timing correctly.
Cylinder or piston rings are worn - Change defective components.
| Engine starts and immediately shuts off |
Fuel filter plugged - Replace filter element.
Fuel injection pump damage - Install a new fuel pump or repair.
Air filter clogged - Carry out maintenance on air filter.
Improper nozzle opening pressure - Set it correctly.
| Engine stalls during operation |
Fuel injection timing is wrong - Adjust the pump as required.
Dirty fuel filter - Filter maintenance required.
Engine is not warmed up to the required temperature - Engine is not warmed up to the required temperature.
Defective or stuck injection nozzles - Service or change injection nozzles.
| Engine stalls when idling |
Incorrect low idle speed adjustment - Adjust low idle speed.
Valve out of adjustment - Adjust valve clearance.
Fuel injection pump malfunctioning - Install a new fuel pump or repair.
Clogged or defective injection nozzles - Check injection nozzles and replace if required.
Clogged fuel hoses or lines - Clean fuel system lines and hoses.
Clogged air cleaner - Service or replace the air filter.
Worn cylinder head gasket - Install new cylinder head gasket.
Improper injection timing - Set up as recommended.
Fuel injection pump is broken - Rebuild or change fuel pump.
Any of moving engine parts is worn - Replace or repair damaged components.
Radiator core is clogged or radiator cap is leaking - Replace cap or clean radiator.
Insufficient coolant fluid - Fill radiator to proper level and check components for faults.
Excessive wear of the fan belt - The fan belt needs to be replaced.
Engine oil insufficient - Check oil level and add oil as required.
Cylinder head gasket is blown - Install new cylinder head gasket.
Incorrect injection timing - Set up as recommended.
Not enough oil in the engine - Check oil level and add oil as required.
Oil pump is damaged - Check and replace if necessary.
Oil filter clogged - Service or replace engine oil filter.
Relief valve is seized or worn - Replace or service relief valve.
Excessive crankshaft bearing clearance - Inspect and change or repair worn components.
Clearance of crankpin bearing is excessive - Check and replace or repair defective parts.
| Excessive oil consumption |
External oil leaks: Gaskets or seals may be damaged - Replace defective parts.
Incorrect oil viscosity - Use oil of correct viscosity.
Stuck or defective piston rings - Change piston rings.
Damaged valve stems or valve guides - Replace defective valves.
Worn pistons or cylinder liners - Inspect liners and pistons, fit new parts as necessary.
Coolant temperature is low - Warm up engine as required.
Engine oil insufficient - Checking oil level and add if necessary.
Fuel injection pump timing is wrong - Use the correct fuel injection pump timing adjustment.
Pistons are scored or worn - Install new pistons.
Connecting rod misalignment or failure - Connecting rod must be aligned or replaced.
Low battery output - Battery needs to be recharged.
Battery will not hold charge - Service or replace the battery.
Battery cables are disconnected or terminals are faulty - Connect wires properly or change terminals.
Battery is low or faulty - Charge or change the battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Low battery output voltage - Battery needs to be recharged.
Faulty starter motor - Repair or install a new starter.
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