LOW COOLANT DTC
UnclassifiedCooling
What This Code Means
EGR Cooler soot buildup; EGR Cooler internal rupture; Visible coolant loss; Low coolant level in surge tank; Failed EGR cooler; Yellow-tinted condensation in EGR cooler (mistaken as coolant)
Possible Causes
- •Light load operation
- •External leaks
- •Internal EGR cooler failure
- •Normal condensation buildup due to cooler efficiency
Suggested Actions
- 1Remove flex elbow piping to complete a visual inspection of the EGR Cooler
- 2Check for active or stored low coolant codes or low surge tank
- 3Inspect for external leaks if coolant loss is visible or DTC history indicates coolant loss
- 4Pressure test cooling system while inspecting for additional coolant buildup in the EGR cooler
- 5Replace the failed EGR cooler and load bank for 2 hours of operation at 75% of the generator's nameplate rating to verify engine reliability
- 6Bleed coolant system at highest engine point after repairs
- 7Do not replace the EGR cooler if there is no coolant loss or low coolant DTCs, unless extreme soot buildup is present
Related Multiquip Fault Codes
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