Question about 2005 Nissan Quest

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Is there a back blend door accuator on a 2005 nissan quest?

I have cold air coming out of the dash vents but hot air on the back/roof vents. Is there a blend door accuator in this vehicle and if so where? If not, could it be the temperature control for the rear as no matter where i set it, it still blows hot air.

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 2005 Pathfinder Heat Flow problem

I am having/had the same problem. My rear heater has not worked the last 2 winters, still trying to figure that one out. But I think I solved the front heat problem myself. The heater was blowing cold air while idling and hot air when the car was moving.

I jacked up the front of the vehicle, took the cap off of the reserve tank for the radiator, turned the car on and ran the heat (AC off) for 15 minutes. This is supposed to release any air bubbles in the coolant system and I did see air bubbles emerge as I was watching (this might be normal occurance, I'm far from a mechanical expert). Anyway, this did not immediately solve the problem, still blowing cold air as it sat there idling after 15 minutes. Dejected, I put the cap back on, lowered the vehicle and resigned myself to taking it to a dealer.

But a funny thing happened the next day, the coolant level was a lower (no leaks on the floor) so I filled up, and sure enough, when I started the car and let it warm up a little, hot air started coming out of the heater!!!

As far as my wife knows, I fixed the problem for the price of a bottle of coolant, so I am a hero...but at first I thought it didn't work. Here we are a month later and still blowing warm air and haven't had to replace any more coolant...the internet is a wonderful thing!

Hope this works for you, and I hope I can figure out my rear heater problem as well.

Posted on Jan 30, 2009

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dgjtex
  • 405 Answers

SOURCE: Front air condition does not blow cold. Rear air condition does

sounds like a damper door in the front not working properly, these are actuated by the front temp control, the door is operated by either a manual cable, and electric actuator, or vacuum. I hope this helps you zero in on your problem. Merry Christmas

Posted on Dec 22, 2008

roniecon
  • 6927 Answers

SOURCE: 2000 Nissan Quest, Hot air is coming out vents no

It is most likely the temp door actuator motor in the dash the dash has to be removed to repair the problem.

Posted on Aug 09, 2010

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Hope I was avle to help, glad you up and going.

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