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No. 18 Cooling System Concerns-Runs Cold: Notes

NO. 18 COOLING SYSTEM CONCERNS-RUNS COLD DESCRIPTION AND POSSIBLE CAUSE

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