2003 Buick Century New radiator and thermostat - car still

2003 BUICK CENTURY
130,000 MILES • 6 CYL • FWD • AUTOMATIC
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SSGTMARATHON
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Gentlemen,

I have a 2003 Buick Century with 130,000 miles. I took my car to the shop to diagnose the overheating problem and paid $50 for a full system check. They told me that I needed a new radiator and to replace the hoses and thermostat. This past weekend I installed a new radiator, thermostat, and upper/lower hose. My wife was driving today and told me the car overheated again getting almost to the red before she turned the hot air on. Please help me with suggestions before I take it back to that shop.

Thank you.
Jun 1, 2010 at 9:47 AM
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DOCFIXIT
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Check cooling fan operation if good have coolant checked for presence of CO2
Jun 1, 2010 at 12:09 PM