Why does my 2001 Grand Prix send AC to the driver side and Heat to the passenger when both climate controls are set to cold?

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1042060

2026-04-12 03:55

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Could the heater door actuator be bad? What is the cost to replace? This Grand Prix has a dual-zone climate control and when the AC is on, the passenger side vents often change to heat when the control is still on cold.

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