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Discussion Starter · #1 ·
I just had my Sienna's A/C checked because it is taking a long time to cool and doesn't cool all that great.
Mechanic told me Sienna's with dual A/C (front and back) operate like this.

Is this true?

Thanks!
 

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Try cleaning the ac condenser. I did it on mine and the performance improved. Search the 3rd Gen forum for the DIY instructions as it is easy. Also make sure the cabin filter isn’t too dirty.
Try this. 2009 is actually still gen2 but it’s still pretty easy to do (bumper cover must be removed). I had the same symptoms as you in our 2007 and cleaning the condenser made a significant improvement.

-Mike
 
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