2005 Astro Van Rear AC Blows Warm Air

my2005vanmy2005van Member Posts: 1
edited May 2016 in Chevrolet
The rear ac in my 2005 astro van blows warm air. I recently had to replace the front AC system. Not realizing at the time the rear ac was bad as well.
I've replaced the rear expansion valve, check coil for air flow (good) & also check the ac lines under the van for the rear ac unit. They both are normal temp to the touch.
It seems as thou something is blocking the flow of Freon to the rear ac system.
Any suggestion?
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