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    Thread: Aveo5 LS 2009 - A/C & Temperature Gauge Temporal Sudden Death When Driving 70 mph

    1. #1
      What's wrong with my car?
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      Question Aveo5 LS 2009 - A/C & Temperature Gauge Temporal Sudden Death When Driving 70 mph

      External Temperature: Low 80s
      Car Velocity: 70 mph Steady for 45' at least
      Temperature Gauge: Middle Mark (Normal)
      A/C: Working Maximum Cool at Middle Fan


      Suddenly A/C begins to blow warmer air, no A/C
      Temperature Gauge dead, below minimal mark


      I stopped the car believing that something happened with radiator or water pump
      Nothing wrong found
      Coolant flowing thru radiator and water hoses on warm temperature


      I started the car and went back home
      Next morning, car working 100%


      Same problem has happened three times by now and the mechanic recommendation was
      to replace the coolant thermostat but why the A/C died and even worst, the temperature gauge


      I had not run the Aveo5 at 70 mph this year before the summer
      Does anyone have similar issue?



    2. #2
      What's wrong with my car?
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      I had the same problem and replaced the thermostat and housing. It worked just fine after doing that.

    3. The Following User Says Thank You to bomberc10 For This Useful Post:

      JoseGala (08-20-2018)

    4. #3
      What's wrong with my car?
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      Thank you for responding
      I will proceed as recommended

    5. #4
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      Thumbs up Temperature Working OK

      Following the advise, the whole Coolant Thermostat (body & sensor) was replaced
      Three things began to work 100% after CLEARING CODES:
      Temperature Gauge
      A/C
      Second Radiator Fan
      and of course, the coolant thermostat
      Thank you very much





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