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Home >> Mazda >> 2014 >> 5 Touring >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine >> No. 18 Cooling System Concerns-Runs Cold >> Notes

No. 18 Cooling System Concerns-Runs Cold: Notes

18 COOLING SYSTEM CONCERNS-RUNS COLD
DESCRIPTION 
  • Engine does not reach normal operating temperature.
POSSIBLE CAUSE 
  • A/C and heater system malfunction
  • Thermostat malfunction
  • Improper operation of cooling fan control system
  • Improper indication of low engine coolant temperature indicator light and high engine coolant temperature warning light
    • ECT sensor malfunction
    • Instrument cluster malfunction
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