2005 Hyundai Tuscon Coolant temperature overheats

2005 HYUNDAI TUCSON
74,150 MILES • 4 CYL • FWD • AUTOMATIC
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PBMOFO
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  • 1 POST
I recently replace the thermostat and checked the fan they are both in working condition car tends to over heat while driving when it does so i turn ac on full and it cools if im at idle and i turn ac on it begins to work for a few seconds then gets warm and the engine coolant temperature goes up to about 205-215 i even flushed the radiator and filled with fresh 50-50
Aug 1, 2009 at 5:36 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
The AC will place an extra load on the engine. AS a result, the engine will run hotter.

The thermostat isn't designed to fully open at 195°. Is the fan coming on? If so, 205 really isn't too hot.
May 25, 2010 at 11:37 AM
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