Cummins Fault Code

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Cummins 115 (190-2)

Crank, No Start.

System

Timing

Symptom

Crank, No Start.

Diagnosis & fix steps

LOGIC: Engine Speed (Crank) Sensor - Data Erratic. ACTION: Check the sensor tip for metal shavings (swarf). Verify air gap.

Red Seal field insights

Specs: Gap: .020"–.040". PRO-TIP: If the sensor is magnetic, it pulls "junk" out of the oil. A dirty sensor can't "see" the teeth on the gear.

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