the rear ac drain is right under the ac unit in rear driver side of van. my 1996 g-10 conversion van had a clear tube that was clogged, and leaked out in the rear soaking the carpet. just remove the clear tubing, clean it out and replace. i dont know about the front.
Your rear ac expansion valve is located on the right rear inside your distribution assembly. You will have to remove the inner right side interior to get to it. It is encased inside the black assembly along with the heater core.
I had this same problem and was told that the rear ac lines are leaking. It doent make sense. but that is what i was tol $1100.00 to replace the lines I asked why would the rear work and not the front if the rear was leaking and they could not explain.
MOre INFO about our vehicle: When we first bought this Ford Expedition, the rear ac worked great! It was Ice Cold. However, we noticed that when we turned the Rear Heat on to test it out, after that, the rear AC stopped working. As if the car dealership "rigged" the ac to work, but once the heat was turned on it made only the heat work. Please give me some ideas as to what you think could need fixed--a switch, valve, etc. And if you can say where to look that would be appreciative. Thanks!!!!!
Check for a second fan switch on the control panel by the radio.
Have you checked your liftgate fuse? In my 2006 Yukon, when the liftgate fuse went out the rear ac wouldn't work nor would the electric locks for the liftgate itself.
There were 2 options for the rear control units, 1 was AC only, 1 was heat and AC. If your controls above the second seat only have 1 knob, it's AC only, the heat/AC version has 3 knobs. The correct Answer: 1996 - 2000 (Old Body Style) Tahoes and Yukons only got the rear air option. Suburbans and Yukon XL's get the Heat and AC option.
where is the rear AC blower on the Chevy Astro 98
Is the rear blower functioning? If so the AC system may be undercharged. I would first suggest checking that the system is properly charged, if it is then there may be a blockage of some type in one of the lines.
gants, I have Denali 2004, the rear AC blower not working
rear window defroster light keeps flashing
It is Low on Freon. I have a Tahoe that does the excat thing when my freon gets low..the back will be freezing cold and the front not.