HVAC Intake Door Motor
 

How about removing the air bag?

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.

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

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.

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

I'm coming around to this again.

I want to replace the RECIRCULATE door motor of the HVAC system. I already have Nissan P/N 27740-40U00 on-hand. It's located on top of the air box.

Do I have to take the dash pad off, or is there a way to replace the motor without taking the entire dash off?

thanks

If you can get your hand in there and touch the screw heads, you can use one of these or something like it, that you can attach a 7mm socket bit.

I would imagine taking the glove box out and/or the stereo stack (top vent and clock down to the ash tray) out will give more access to maneuver.

https://cimg2.ibsrv.net/gimg/maxima....24198eb4cf.jpg

Here's a diagram that will help. Looks like glove box removal is your best bet. Below is a video that shows how to remove the glove box (and other things)

https://cimg2.ibsrv.net/gimg/maxima....50078ccdb6.png

in that video the guy is taking the evaporator box totally out of the car. I do NOT want to do that.

Does anyone know for certain whether taking the air bag out will facilitate easier replacement of the recirculate door motor (on top and to the left of the evap box)?

I realize there are no guarantees in life - I'm just looking for a hint. It's already on the back end of summer now and I wish I'd done this sooner - couldn't while I was driving it every day though. The temp in the center vent on "3 blades fan speed" is consistently 46 degrees less than "Ambient" - but there's a big difference between "Recirculate" and "Ambient" in Houston, TX.

I was looking at the 97 FSM, section HA. On page 113 is a drawing of the intake door motor. But an even better drawing is the one for the blower motor on page 112 that shows the relative positioning of the intake door motor. I no longer have the 97 Max, so I can't look at an actual car.

If you remove the glove box, I think you will see it. Whether you can touch it, I don't know.

Blower motor drawing from the FSM -
https://cimg9.ibsrv.net/gimg/maxima....b0b6b5b4a4.jpg

photo from my car

https://cimg2.ibsrv.net/gimg/maxima....e3066aca98.jpg

I’m making a plan to finally get this done...BEFORE summer this time. I’ll remove the glovebox, maybe the air bag too. I’m pushing really positive waves about getting it done without removing the dash.

In the meantime - The blower motor has started to make more of a “clicking” noise than I find acceptable, especially at speeds less than “4 blades”. I think I’d like to replace the 22-year old blower motor at the same time I replace the recirculate motor.

Is there anything I’m missing besides “buy the motor and install it”? I figure probably “yes” but I’d love to hear your thoughts first.

Thanks - BrianA in Houston

The blower motor is almost simple. You don't need to remove the dash or airbag, just the glove box, However, once you get the blower motor pulled out of its opening, it won't come out because it is too big to drop down past the bottom re-enforcement bar for the glove box. You may be able to force it out, but if you can't, remove the kick panel and you will see a bolt that holds the end of that bar in place.