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HVAC Intake Door Motor

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Old 08-12-2018, 06:07 PM
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HVAC Intake Door Motor

HOW am I supposed to actually remove and reinstall this thing? Page HA-55 in the '98 i30 FSM.

This is the "ACTUATOR-AIR INTAKE BOX" shown here:

https://www.infinitipartsdeal.com/pa...270_B002,27080

I removed the glove box and I can see the intake doors/arm/motor "actuator". They "don't move at all" when RECIRC is selected, nor during Step 3 of the Self Diagnosis procedure (reporting codes 38 & 39).

The motor looks like its secured with four screws taking a 7mm wrench. I can get my huge hand in there and touch all four screws - but that's not the same as swinging a ratchet on them. Or even a small crescent...

Appreciate any advice about how to actually affect this repair.


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Old 08-12-2018, 06:22 PM
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I see DennisMik working hard 7 years ago (below) - is his post #8 really the air intake motor I'm interested in? Is removing the dash really the only option?

https://maxima.org/forums/4th-genera...dashboard.html
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Old 08-12-2018, 11:03 PM
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How about removing the air bag?
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Old 08-13-2018, 09:43 PM
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Originally Posted by JSutter View Post
How about removing the air bag?
Where are you DennisMik ?

from that 2011 post, I gather that DennisMik removed the air bag along with the dash proper. Yet mention is still made of a hacksaw blade being used for <something>...

enquiring minds want to know!
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Old 08-14-2018, 08:57 AM
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Are you sure he was working on the same motor? I thought he said temp motor which is on the bottom.
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Old 08-14-2018, 09:35 AM
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Originally Posted by JSutter View Post
Are you sure he was working on the same motor? I thought he said temp motor which is on the bottom.
NO - I am not sure about any of those extremely salient details.
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Old 08-14-2018, 12:03 PM
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Guess who showed up late for the party?

In my thread, I was trying to replace the air mix door motor that sits above the car's ECU. The air mix door is what controls the temperature of the air that blows into the cabin.

reallywildstuff is referring to the air recirculate door motor that Nissan uses a different name for. I never had to replace one of these motors so I can't be 100% sure of how you do it, but I think you can take it off if you remove the glove box. You should use a 1/4" socket for tight places like this. You will probably need a u-joint and a couple of extensions.

Suggestion for re-assembly. Replace the Phillips head screws with hex head. Much easier to work with.
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Old 08-14-2018, 04:00 PM
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Originally Posted by DennisMik View Post
Guess who showed up late for the party?

In my thread, I was trying to replace the air mix door motor that sits above the car's ECU. The air mix door is what controls the temperature of the air that blows into the cabin.

reallywildstuff is referring to the air recirculate door motor that Nissan uses a different name for. I never had to replace one of these motors so I can't be 100% sure of how you do it, but I think you can take it off if you remove the glove box. You should use a 1/4" socket for tight places like this. You will probably need a u-joint and a couple of extensions.

Suggestion for re-assembly. Replace the Phillips head screws with hex head. Much easier to work with.
I get it. Later on you were probably pissed to figure out that you can remove the air mix door by first removing the ECU - right?

PS the only reason I know anything about the ECU/motor issue at all is because of your very posts

Last edited by reallywildstuff; 08-15-2018 at 08:53 AM. Reason: I sounded like an assh*le
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Old 08-15-2018, 11:06 AM
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Originally Posted by reallywildstuff View Post
I get it. Later on you were probably pissed to figure out that you can remove the air mix door by first removing the ECU - right?
Once I figured out I had to replace the air mix door motor, it looked like a fairly easy job once the ECU was removed. The only problem was that I couldn't get the ECU out. I asked how to do that here on the org and never got an answer. I kept trying to remove it, but no luck, so that's when I thought that removing the dash would be almost the same. That turned out to be bad thinking. Educational but bad thinking. Access to the motor screws was no different whether the dash was in or out. Sometime you live life, sometimes life kicks you in the butt.
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Old 08-15-2018, 11:47 AM
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Originally Posted by DennisMik View Post
Once I figured out I had to replace the air mix door motor, it looked like a fairly easy job once the ECU was removed. The only problem was that I couldn't get the ECU out. I asked how to do that here on the org and never got an answer. I kept trying to remove it, but no luck, so that's when I thought that removing the dash would be almost the same. That turned out to be bad thinking. Educational but bad thinking. Access to the motor screws was no different whether the dash was in or out. Sometime you live life, sometimes life kicks you in the butt.
Well gonna give my 2 cents. I have taken and or cut apart a 4th gen 100%

I know them too well. best way to take out ECU's 95-03 is to take out the radio ,climate area. Then any BCM or trans ECU . then i take the 2 bolts out with extensions . I can have a radio out in a few minutes,and or ECU.
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Old 08-16-2018, 05:05 AM
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This may not be a part you need, but I did find it interesting the Heater Blend Door Actuator from DORMAN 604700 is listed for some 4th gens below.

BUICKLACROSSE2011-2016
BUICKREGAL2011-2017
BUICKVERANO2012-2017
CADILLACELR2014-2016
CADILLACSRX2011-2016
CHEVROLETCAMARO2011-2015
CHEVROLETCRUZE2011-2015
CHEVROLETCRUZE LIMITED2016
CHEVROLETMALIBU2013-2015
CHEVROLETMALIBU LIMITED2016
CHEVROLETORLANDO2012-2014
CHEVROLETSPARK2012-2015
CHEVROLETSPARK EV2014-2016
CHEVROLETVOLT2011-2015

INFINITI I30 1997-1999
NISSAN ALTIMA 2002-2006
NISSAN MAXIMA 1998-2008

If your ECU is held into place with JIS (phillips looking) screws, then it helps to use a JIS driver in an offset ratchet or file down a phillips to make your own.

JIS Information Thread

https://maxima.org/forums/garage-wor...-vehicles.html


Last edited by CS_AR; 08-16-2018 at 05:07 AM.
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