Engine Will Not Start or Starts Hard
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Fuel tank empty
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Check fuel quantity.
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Fuel tank vent plugged
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Remove cap and listen for sound of air entering tank. Replace cap.
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No electrical power to injection pump solenoid (S.N. -882699)
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Turn key switch to ON. Must hear click at injection pump. Replace fuse. Repair wiring.
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No electrical power to ECU (S.N. 882700-)
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Turn key switch to ON. Replace fuse. Repair wiring.
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Water in fuel or water frozen in fuel line
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Drain water from fuel tank. Inspect fuel filter for water. Change filter.
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Debris in fuel or wrong grade of fuel
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Check fuel tank outlet strainer for type of fuel debris. Check bottom of fuel tank for debris. Clean tank. Add fuel. Check grade of fuel. Add correct fuel.
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Air leak on suction side of fuel system
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Check for bubbles in fuel filter and tighten connections. Inspect fuel lines for damage.
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Fuel transfer pump diaphragm leaking
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Check engine oil for fuel dilution. See your authorized dealer.
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Slow cranking speed
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Check battery and connections. Incorrect engine oil (cold weather).
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Restricted air filter
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Check air filter restriction indicator and air filters. Clean.
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Stuck injection pump metering valve (S.N. -882699)
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Tap injection pump housing (lightly). If engine now starts, replace metering valve. See your authorized dealer.
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Faulty electric shutoff (S.N. -882699)
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Test shutoff solenoid. See your authorized dealer.
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ECU fuse (S.N. 882700-)
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Replace fuse.
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Symptom |
Problem |
Solution |
Engine Surges or Stalls Frequently
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Air in fuel
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Inspect filter for evidence of air in fuel. Tighten connections and bleed fuel system.
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Fuel tank vent plugged
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Remove cap and listen for sound of air entering tank. Replace cap.
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Debris in fuel or wrong grade of fuel
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Check fuel tank outlet strainer for debris. Check bottom of fuel tank for debris. Clean tank. Add fuel. Check grade of fuel.
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Water in fuel
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Drain fuel tank and inspect filter element for water. Replace filters.
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Fuel filter plugged
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Replace filter.
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Incorrect valve clearance
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Check and adjust valve clearance. See your authorized dealer.
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Engine Misses
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Air in fuel
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Check for evidence of air in filter. Tighten connections and bleed fuel system.
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Debris in fuel or wrong grade of fuel
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Check fuel tank for water. Check fuel tank strainer and fuel filter for debris. Clean. Check grade of fuel.
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Incorrect valve clearance
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Check and adjust valve clearance. See your authorized dealer.
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Engine Does Not Develop Power
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Fuel tank outlet strainer plugged
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Check fuel tank for water or debris. Remove and clean.
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Fuel filter plugged
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Replace fuel filter.
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Wrong grade of fuel
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Drain and add correct fuel.
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Air system restricted
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Check air filter restriction and air filters. Clean.
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Incorrect valve clearance
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Adjust valve clearance.
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Symptom |
Problem |
Solution |
Engine Emits Excessive Black or Gray Exhaust Smoke
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Restricted air filter
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Check air filter restriction and air filters. Clean or replace.
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Incorrect grade of fuel
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Drain and add correct fuel.
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Incorrect injection pump timing
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See your authorized dealer.
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Excessive fuel delivery
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See your authorized dealer.
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Injection nozzle(s)
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See your authorized dealer.
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Engine Emits Excessive Blue or White Smoke
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Cranking speed too slow
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Check batteries and connections.
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Incorrect grade of fuel
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Drain and add correct fuel.
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Slow Acceleration
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Wrong grade of fuel
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Drain and add correct fuel.
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Detonation (Excess Engine Knock)
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Low engine oil level
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Add oil.
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Abnormal Engine Noise
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Low or incorrect engine oil (too thin)
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Add correct oil to proper level.
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Engine oil diluted with fuel
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Inspect engine oil. See your authorized dealer.
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Excessive valve clearance
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Adjust valve clearance. See your authorized dealer.
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Low Oil Pressure (Oil Pressure Light On-Red "Stop" Flashing)
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Low oil level
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Add oil to proper level. Inspect engine oil.
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Wrong viscosity oil/oil diluted with diesel fuel
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Change oil and see your authorized dealer.
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Engine Overheats (Engine Coolant Indicator Light On and Red "Stop" Flashing)
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Low coolant level
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Fill cooling system and check for leaks.
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Low engine oil level
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Add oil.
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Engine overloaded, operating in wrong gear
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Reduce load.
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Improper fuel
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Drain and add correct fuel.
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Radiator cap
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Replace cap.
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Symptom |
Problem |
Solution |
Excessive Fuel Consumption
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Air system restricted
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Check filter restriction indicator and air filters. Replace.
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Leakage in fuel system
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Inspect. Repair.
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Incorrect grade of fuel
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Refill with correct fuel.
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Operator holding hydraulics over relief
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Return control levers to neutral position.
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Excessive Drag In Turbocharger Rotating Members
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Bearing seizure or dirty or worn bearings caused by excessive temperature, unbalanced wheel, dirty oil, oil starvation, or insufficient lubrication.
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Check for plugged air filters.
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