Isuzu 4LE2X Tier 4 turbo diesel Engine

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• Engine cranks but will not start
  Cause: No fuel
  Fix: Verify there is no fuel leakage and replenish
• Engine has no power
  Cause: Clogged air cleaner
  Fix: Clean element
• Engine starts but stops shortly thereafter
  Cause: Low idle
  Fix: Adjust by idling control equipment on the unit. If adjustment is not possible, contact a GMP ASD
• No/low heat condition
  Cause: Incorrect heater setting (target temperature too low)
  Fix: Adjust heater output. See Adjusting Heater Output
• Overheat/shutdown condition (Check controller for engine fault shutdown code)
  Cause: Access doors are open
  Fix: Close all access doors
• Exhaust smoke is white
  Cause: Insufficient warm-up time
  Fix: Conduct warm-up operation
• Exhaust smoke is black
  Cause: Excessive speed
  Fix: Verify engine rpm; Check AVR adjustment
• Engine will not crank (electric start)
  Cause: Discharged battery
  Fix: Replace battery. See Battery Installation and Replacement
• Engine overheats
  Cause: No coolant
  Fix: Add coolant. See Adding Coolant
• Oil pressure does not rise
  Cause: Incorrect engine oil viscosity
  Fix: Change with oil of correct viscosity. See Draining and Refilling the Oil
• Low Fuel Warning
  Cause: Fuel level < 20%
  Fix: Fuel level notification appears on screen; Low Fuel Level beacon turns on
• Heater shutdown due to temperature; pressure or level out of range
  Cause: High hydraulic temperature
• Engine running is unstable
  Cause: Fuel system failure
• Engine is not ready — Check rpm, Fuel Level or Wait to Start
  Cause: Engine rpm < 500
• Engine fault shutdown
  Cause: Low engine oil pressure

Compiled from service & troubleshooting documentation across every generator set that uses the Isuzu 4LE2X Tier 4 turbo diesel.

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

• Air filter: Isuzu 8972319000 Donaldson P827653 Wix 46671 Baldwin RS3542
• Fuel filter: Isuzu 8981527372 Donaldson P502163 Donaldson P502424 Wix 33393 Baldwin BF954 Wix 33740 Baldwin PF7984
• Oil filter: Isuzu X13201002 Donaldson P557780 Wix 51452 Ac Delco PF960 Baldwin B114

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

• Hitachi ZX40U — Excavator Compact
• Hitachi ZX50U — Excavator Compact
• Kobelco SK80 — Excavator Tracked
• Sany SY70C — Excavator
• Sany SY75C — Excavator

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.