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2002 navigator rear a/c blows cold then warm

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Old 05-07-2013, 11:17 PM
jeffrey5679 jeffrey5679 is offline
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2002 navigator rear a/c blows cold then warm

I recently took my 02 navigator to the shop to get the a/c serviced because the rear air was not blowing cold. After service the front and back a/c worked great for a few hours then the rear a/c started to blow warm air. The front works great and will change from hot to cold when I change temp settings. The rear will change from hot to cold also but sometimes it will start to blow warm air instead of cold air. When the rear is blowing warm air I can change the temp setting to hot and it will get hot but when I change it to the cold temp it only reaches room temp air or slightly cool air. Anyone know why only the rear will sometimes not blow cold air.
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Old 05-08-2013, 08:30 AM
c_hohensee c_hohensee is offline
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Sounds like it might be a blend door problem. Either the actuator or the door itself.
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98 XLT 4X4 5.4 W/aftercooled Vortech S/C, custom tuned w/lightning maf and 42# injectors, Flexlite electric fan, Lightning Head and Marker lights and LED tails, Bilsteins, S/S headers and Magnaflow catback, Pioneer nav system and Airlift rear bags w/compressor
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Old 05-08-2013, 09:29 AM
jeffrey5679 jeffrey5679 is offline
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the rear heater still works perfectly and the temp will change from hot to room temp air or slightly cool. Would that still be the case if its the blend door? If so which blend door would it be?
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