Question about Heating & Cooling
Since both front and rear run off the same AC compressor there is one likely suspect that would cause this and that would be the rear AC expansion valve at the inlet to the rear AC evaporator core of the rear AC, it is most likely defective. You will need to recover the systems refrigerant and replace the expansion valve. See picture below and part number for a new rear AC valve.
MOTORCRAFT Part # YG333 $31.99 [source of part number and price is www.rockauto.com]
Posted on May 26, 2011
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Posted on Jan 02, 2017
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