FAIL-TO-START FAULT
UnclassifiedCooling
What This Code Means
Misfiring; Rough idle; Increased emissions under load; Rich running; Lean running; Unstable speed at light loads; Slow crank; Engine fails to start; Coolant weeping at joints; Low coolant level; Misfire under load; Hard starting; Fail-to-start; Hard starting on cold mornings; Hard start; Rough running; Black smoke; Reduced power output; Coolant seeping at joints; Engine overtemperature
Possible Causes
- •Faulty spark plugs
- •Faulty fuel regulator / mixer
- •Weak or failed battery (12V, 850 CCA)
- •Faulty coolant hoses and fittings
- •Spark plugs / ignition failure
- •Fuel regulator / air-fuel mixer failure
- •Battery failure (12V, 850 CCA)
- •Coolant hoses and fittings failure
- •Spark plugs failure
- •Ignition failure
- •Fuel regulator failure
- •Air-fuel mixer failure
- •Coolant hoses failure
- •Coolant fittings failure
- •Faulty fuel injectors (B3.3 inline-4)
- •Loose or damaged cooling system hoses and clamps
- •Starting battery bank failure
- •Extended no-load storage
Related Cummins Fault Codes
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