09 Mazda5 GT - Help! Rear Air issue

[vwconvert]

Hi all. New to this forum and enjoying the community already. Thanks to all!

Not sure if this post should be here, but I didn't know where else to put it (mods- please move as needed).

I have an 09 GT with rear air. The front A/C functions work correctly. The issue is that the rear blower is working, but I have very little (if any) airflow actually coming out of the rear vent. When you cycle through the OFF/LOW/HI settings, you can hear the rear blower change speeds correctly (but still no change in air flow). Thinking, there might be a blockage in the ducting, I took off the center console unit and verified it was clear. Now I can visible see the rear blower "squirrel cage" when cycling through the fan speeds, and it still seems to working correctly.

So my question now is, what else should I check? What else do I need to disassemble? I thought that maybe I should take a look at the cabin filters, but then realized that any blockage there would cause issues with the front A/C operation which is OK (am I right on this?).

Thanks in advance for any help.

Ben

 

[flcruising]

It's been a while since I had to remove the center console so I don't remember, but was the blower attached to the console or the floor? Can you remove it and look ahead of it? Since the service manual isn't available to us for '08+ models with rear a/c, I can't confirm whether a damper has been incorporated for the rear blower.

 

[vwconvert]

Thanks for the input Aaron. No service manual fo 08+ w/ rear a/c?!?! No wonder why I couldn't find anything on this.

From what I can tell, the rear blower unit is indeed bolted to the floor. I'll remove the front floor console/panels (section under the shifter) and see if I can remove the rear blower. Good point about the damper door; I'll look for it and see if it works.

 

[vwconvert]

Update: I finally got all of the trim pieces off to expose the rear blower unit; all of the pieces came off easiy, EXCEPT for the 2 clips on the forward center console located right above the shifter (ended up breaking 1 of them). While looking around, I for some reason decided to press the Fresh/Re-circ button (it was on Re-circ).... go figure no more rear air problems. I tried to recreate the problem, but haven't had any luck.

Another phantom electrical glitch to keep an eye on ...

Thanks for the help.

 

[flcruising]

Good news. But since the problem wasn't found, it always makes you a little uneasy about it returning. At least you now know how to get things apart.