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Home › Kia › 2024 › Niro Plug-In Hybrid EX › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control/Fuel System - General Information (PHEV) › Troubleshooting › Basic Troubleshooting Guide › Symptom Troubleshooting Guide Chart › Engine Is Knocking

Engine Is Knocking

Inspection Procedure Possible Cause
  1. Inspect fuel pressure
  2. Inspect spark plug
  3. Inspect engine coolant
  4. Inspect radiator and cooling fan
  • Check the DTC
  • Contaminated fuel
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