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No air comes out at front vents

Tiny
AN2NY0830
  • MEMBER
  • 2004 INFINITI QX
  • 5.6L
  • 2WD
  • AUTOMATIC
  • 134,000 MILES
There is cold and warm air at the feet and windshield but no air comes out at the front vents? Did replace cabin filter. Did took the fuse out for actuator blend to re-calibrate. Would want to know which actuator controls the vents for the front A/C vent? And its location.
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Wednesday, May 31st, 2017 AT 7:57 PM

13 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Turn key on and try pulling HVAC fuse to re-calibrate for sixty seconds then reinstall that may fix it. See picture for mode actuator.
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Thursday, June 1st, 2017 AT 6:49 AM
Tiny
AN2NY0830
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When I put back the fuse car should be in the on position as well am I correct? Also at the passenger side below the cabin filter a little to the left is that the actuator that controls the air flow I saw it in YouTube that would be easy to do but also there is one inside the top dashboard?
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Thursday, June 1st, 2017 AT 7:05 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes key on if you look in picture there is a white arrow pointing to front this means it will be on driver's side above gas pedal.
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Thursday, June 1st, 2017 AT 8:27 AM
Tiny
AN2NY0830
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Alright I will give it a shot hopefully it works. I will let you know. Thanks
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Thursday, June 1st, 2017 AT 8:39 AM
Tiny
AN2NY0830
  • MEMBER
  • 13 POSTS
It did not work for me. I tried taking the fuse out which is the HVAC located in the passenger side 10 amps.
What I did was take the fuse, turn the key to ACC, after a minute turn it off, put fuse back, start a minute then check still no air in front vents. It is getting frustrating and challenging as well any more ideas?
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Thursday, June 1st, 2017 AT 9:33 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Key should be on not ACC. Also, before changing part have a mechanic scan for codes due to it being auto temperature control as it may be something in that part not allowing it to work.
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Thursday, June 1st, 2017 AT 11:57 AM
Tiny
AN2NY0830
  • MEMBER
  • 13 POSTS
Are you saying key should be ON position then tske the fuse out on the passenger side HVAC 10amps? Then when I put back the fuse key should be turn off? Could u elaborate step by step? Thanks
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Friday, June 2nd, 2017 AT 5:10 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Put key in ignition, turn key on, remove fuse for 60 seconds then return fuse to fuse box. After fuse is in fuse box start car and see if it works. If not have a mechanic scan for codes to make sure it is the actuator.
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Saturday, June 3rd, 2017 AT 5:44 AM
Tiny
AN2NY0830
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Thanks for being so patient with me. I tried but still no avail I guess I have to buy myself a scan tool that controls hvac too. I was also thinking of taking the battery out for a complete reset just not sure if my stereo would work or if it has a code. Ill update you of the fix thanks so much
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Saturday, June 3rd, 2017 AT 7:56 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Don't take battery out it won't help and scanner to check hvac will run you at least $4000 as they are not like an auto parts scanner that only reads engine/transmission codes and nothing more.
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Saturday, June 3rd, 2017 AT 11:20 AM
Tiny
AN2NY0830
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I did end up fixing it it was the actuator on the driver side beneath the dash it controls the air flow vents in the front but I did made a wrong assessment at first I did replace the one inside the dash beneath the gps screen which is a pain in the butt. I guess taking out the fuse didnt do anything on my truck that approach is for GMC vehicles only as per the youtube video
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Friday, June 16th, 2017 AT 6:59 AM
Tiny
AN2NY0830
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This is how I fix it
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Friday, June 16th, 2017 AT 7:04 AM
Tiny
HMAC300
  • MECHANIC
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Least you got it fixed
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Friday, June 16th, 2017 AT 9:28 AM

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