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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System - MZI 3.7 V6] >> No. 18 Cooling System Concerns-Runs Cold >> Notes

No. 18 Cooling System Concerns-Runs Cold: Notes

18 COOLING SYSTEM CONCERNS-RUNS COLD
DESCRIPTION 
  • Engine takes excessive time to reach normal operating temperature.
POSSIBLE CAUSE 
  • A/C and heater system malfunction
  • Thermostat malfunction
  • Cooling fan system malfunction
  • Improper water temperature gauge operation
    • CHT sensor malfunction
    • Instrument cluster malfunction
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