Mechanics

HEAT

2003 Cadillac CTS • 6 cylinder FWD Automatic • 91,000 miles

Blowing cold air only on drivers side
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Sherrie5
December 16, 2010.



The temp is controled by a blend door. Your vehicle has two of them. It sounds like one is stuck and not working. Have that checked. IT is near the heater core and not easy to get to.