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Cummins N14 STC, Celect, Celect Plus – Service Manual Fuel in Coolant

Symptom Tree  t091

This is symptom tree
Cause Correction

Bulk coolant supply is contaminated

Check the bulk coolant supply. Drain the coolant and replace with non-contaminated coolant. Replace the coolant filters. Refer to Procedure 008-018 in Section 8.
 

Fuel heater is malfunctioning, if equipped

Check the fuel heater and replace, if necessary. Refer to the OEM service manual.
 

Cylinder head is cracked or porous, or an injector sleeve is leaking

Pressure test the cylinder head and inspect the injector sleeves. Refer to Procedure 002-004 in Section 2.
 

Injector o-rings are damaged or missing

Remove and check the injectors. Replace the injector o-rings. Refer to Procedure 006-026 in Section 6.
 
Last Modified:  18-Jan-2012
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