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Engine Fails To Reach Normal Operating Temperature

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the cooling system is properly filled. Refer to Draining and Filling Cooling System  .
  2. If the complaint is a low temperature gauge reading, check the temperature gage for proper operation. Connect a scan tool to the vehicle and read the system temperature. Compare this reading to the temperature gauge. Replace the gauge or switch if necessary.
  3. Refer to HEATING PERFORMANCE DIAGNOSTIC if the complaint is no heat from the HVAC system.
  4. Verify proper thermostat operation. Refer to Thermostat Diagnosis  .
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