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check temp. blend door actuator its what controls the temp doors to change from hot to cold usually pass. side door breaks on jeep grand cherokee's causing pass. side to be cool,have seen some on drivers side break but not as many
Sounds as if the door actuator has quit working on the driver's side. this is a very difficult unit to access and should be done with courage or by an expert "groan" dealer.
1. Place the ignition switch in the off position. 2. Remove the HVAC/ECAS fuse for 10 seconds or more. It's in the under hood fuse box. Put the temp in full cold. 3. Install the fuse. 4. Start the engine. DO NOT TOUCH THE HVAC CONTROLS FOR LESS THAN 45 SECONDS. 5. Have any codes cleared with a scan tool.
i've been down here too myself, and discovered that the temp control motor, located in the bottom of the glove box, which you can access by clearing all your stuff in in and opening a small door. you can adjust it manually, and see if it changes, if yes, the switch can be defective, as well as the motor, the switch is the most likely problem. but adjust it manually first.
its likley to be the pipe has been riped off or fell off or its the flaps on the heater box its self not opening,,,have a look under the dash to fine any pipes that are off the heater box,,
anyhow, who cears if the passanger gets cold,,, its the driver who needs to keep warm!!!!
unless its the other half? or worse still its the mother in law!!!! ho ho ho!
you have a bad left temp door actuator. its on the lower left side of the heater box held on by 2 or 3 5.5 mm screws. It will most likely need calibrated after replacement
sounds like blend door cable is detached,i believe this cable runs to the passanger side of heater box,you can see it by looking up from the floor on the passanger side
Check the passenger side mode door actuator. This is located under the dash on the passenger side. Once you find it watch the rod as you move the temp lever from hot to cold to see if it moves. If it does make sure that the rod is hooked to the door. If it doesn't the actuator is probably bad or the door is jammed.
I will check it out
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