International (Navistar)
Navistar DTC
International Fault Code 311: Engine Oil Temperature signal out-of-range low
311 on International / Navistar trucks means: Engine Oil Temperature signal out-of-range low.
Code details
- Manufacturer
- International (Navistar)
- Applies to
- International / Navistar engine (DTC index)
- Fault code
- 311
- Component / signal
- EOT
- Truck models in source
- 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar
What to do next
- Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
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Related fault codes
Source: Navistar diagnostic trouble code index (HNC Truck Parts). See also OBD-II codes.