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Discussion Starter #1
How do you check the rear AC unit, it will sometimes blow warm air and then sometimes blows cool or cold air.

Does this unit use R134?

Could it just be alittle low on freon?

Thanks
 

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If it's anything like the Moutaineers it doesn't have a separate A/C unit for the rear, just a large one for both front and rear. Sounds like maybe a blend door might be messing up.

At least I'm pretty sure that's how the one in the Explorers/Moutaineers are...
 

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Discussion Starter #3
Yes it does have another unti in the drivers side rear compartment.
 
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