If you have good heat on one side but not the other it likely isn't the blend door actuator as that car only has a single actuator that controls both sides. The more common reason for low heat on that side is a partially plugged heater core. For that you could try a heater core flush to clean out the core and see if you get heat back. For that you use a flush tool with water and air to stir up the debris and flush it out.
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Sunday, February 1st, 2026 AT 3:04 PM