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Home >> Mazda >> 2012 >> CX-9 Touring, 3.7L Eng VIN V, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine Control System MZI-3.7] >> No. 18 Cooling System Concerns-Runs Cold >> Notes

No. 18 Cooling System Concerns-Runs Cold: Notes

NO. 18 COOLING SYSTEM CONCERNS-RUNS COLD REFERENCE CHART (MZI-3.7)

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