Toyota Sienna Heating / Cooling

93 messages, Last post on Nov 16, 2009 at 4:07 PM

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What is this discussion about? Toyota Sienna, Heating / Cooling, Van

#90 of 93 ventilation on-off by nic11 Oct 29, 2009 (8:31 am)
I have a 2003 Sienna. Last weekend, the ventilation system made some strange sounds for a few minutes. After that when I drive fast enough I can feel the flow of air from outside coming in although the fan control is in the off position. I took it to the mechanic and he thinks that this is the normal the ventilation operates. But I don't remember the car letting the airflow in when the fan control was in off in the past. Can anybody please let me know if that's how it's supposed to be or not? Thanks! Replies to this message: wwest (Oct 30, 2009 8:54 am)
#91 of 93 Re: ventilation on-off [nic11] by wwest Oct 30, 2009 (8:54 am)
Replying to: nic11 (Oct 29, 2009 8:31 am) If you put the system in defrost/defog/demist mode the natural airflow due to forward speed will be minimized. I would recommend recirculate mode but some modern day systems will automatically switch back into fresh mode within ~2 minutes if the A/C is off.
#92 of 93 Re: '05 Sienna A/C quit working completely [kharding] by lee104 Nov 06, 2009 (7:32 am)
Replying to: kharding (Jul 09, 2008 8:09 am) Yes, This works. Thank you.
#93 of 93 Re: 2004 Sienna Rear Heat Issue [mafaust] by dr_jem Nov 16, 2009 (4:07 pm)
Replying to: mafaust (Mar 13, 2008 8:19 am) Hi mafaust, have you resolved this issue? I'm having the same issue with our 2008 sienna.