Driver side heat issue
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3rd Gear
Joined: Jun 2022
Posts: 3
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Driver side heat issue
Have really enjoyed reading the forum and all the great information and solutions that are provided. This is my first post and wanted to see what you all thought about my small issue. Have a 2017 King Ranch w/Rapid Heat. Have only had it 6 mos. As winter came, I noticed that the air on the driver side was cool to start with and never really got hot. At first I thought the Rapid Heat wasn't working, until my wife one day said, "It's hot on this side". SOB, it was blowing nice hot air on the passenger side. Paying more attention, the driver side does warm up as the engine temp goes up, but it never gets as warm as the passenger side. If I turn the temp on the driver side down, it does get cold, and then warms back up when I turn the temp back up. Does that sound like the blend door actuator that is down by the hump on the passenger footwell? Would a partially malfunctioning one account for the warm to cold function but not all the way hot? What about the lack of hot air from Rapid Heat but some moderately warm air once the engine warms up? Planning on replacing the actuator I referred to but just wondering if that is really the problem. Thanks for any help.
3rd Gear
Joined: Nov 2025
Posts: 3
Likes: 0
2107 no driver side heat
I have a 2017 f250. Can’t get heat out of drivers side. I have check all of the mode door actuators. Have also manually opened and closed the door for the drivers side. Can hear door open and closed yet driver side temp through vents barely change from cold to mild. Had the same problem last winter, mechanic installed a new heater core and actuators. Only worked for a short time. Took back to mechanic and he couldn’t locate the problem. Any ideas? Were you able to find the solution to your issue?
Have really enjoyed reading the forum and all the great information and solutions that are provided. This is my first post and wanted to see what you all thought about my small issue. Have a 2017 King Ranch w/Rapid Heat. Have only had it 6 mos. As winter came, I noticed that the air on the driver side was cool to start with and never really got hot. At first I thought the Rapid Heat wasn't working, until my wife one day said, "It's hot on this side". SOB, it was blowing nice hot air on the passenger side. Paying more attention, the driver side does warm up as the engine temp goes up, but it never gets as warm as the passenger side. If I turn the temp on the driver side down, it does get cold, and then warms back up when I turn the temp back up. Does that sound like the blend door actuator that is down by the hump on the passenger footwell? Would a partially malfunctioning one account for the warm to cold function but not all the way hot? What about the lack of hot air from Rapid Heat but some moderately warm air once the engine warms up? Planning on replacing the actuator I referred to but just wondering if that is really the problem. Thanks for any help.
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