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    Rear AC Warm but Front AC Cold - 1998 5.4L XL 4WD

    I pulled the 3rd seat and removed the small access panel on the driver's rear side and located the 2 ac lines entering the panel area from under the vehicle - both were a room like temp with the rear ac unit in full cold selection. I then traced the 2 room temp lines to where they enter the...
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    Rear AC Warm but Front AC Cold - 1998 5.4L XL 4WD

    Ideas? I suspect I should open up the rear AC area and see if the lines are cold and then inspect the mixer flap and perhaps limit it to the expansion valve? The rear unit vents have good airflow.
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    Rear AC Warm but Front AC Cold - 1998 5.4L XL 4WD

    I have a 1998 XL 5.4L 4WD (original owner) with rear AC and the AC in the front vents is ice cold but the AC from the rear vents is now blowing warm. No combination of vent and temperature control knob changes will get cold air out the rear vents. Note - the air from the rear vents will get...
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