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Old 12-05-2010, 07:22 PM   #1 (permalink)
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Dreaded leaf in the blower motor...>

when the fan hit speed 3, 4 or 5 it sounded like a baseball card clipped into your bicycle spokes when you were a kid Service bulletin 04-037 covers this issue, however step 3 of the repair procedure has a "gotcha" that I'll outline here for anybody else who needs to pull their blower motor. First off, the service bulletin does not say that the glove box needs to be pulled. As I have done this before for the pollen filter change, I pulled the glove box in order to have a better view of things. The Service Bulletin repair procedure states to Remove the fright front door sill, the door opening trim and the kick panel; pull the carpet aside. I did not find any reason to pull the carpet aside. Step 2 is to disconnect the connector from the fan. Step 3 is to remove the three screws. This is way easier said than done. The screws can be dealt with in one of three ways - 8mm socket, flat-blade screwdriver or a torx bit, sorry I did not jot down the size of the torx bit. The front two screws are a cinch to get at, I used a socket driver. The third screw is way in back of the blower motor and it has about 2" - 3" of clearance to the carpet covering the passenger wheel well. I did not have the tools to pull this screw. Fortunately the neighbor across the street is in construction, so I took one of the front screws over to him. He gave me a stubby flat-blade, which did help out a little, but the key tool was a small 1/4" racheting torx bit wrench. I had to position a flashlight near the fuses ( exposed by removing the kick panel ) and then nearly stand on my head under the dash, top of my head on the mats and work that little torx rachet in. Room is so tight that you have to work hard just to get the one click of the rachet. After a couple of three-minute sessions with a break in between I got it out. Cleared the leaves, checked the pathway to the blower and reassembled all. The screw is equally difficult getting back. Sorry, no pix, wouldn't have been able to get a camera back in there in any case.
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Old 12-06-2010, 02:11 AM   #2 (permalink)
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Yup, that back screw is a pain to reach. All in all an easy DIY.
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Old 12-07-2010, 11:38 PM   #3 (permalink)
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I had the same problem about 2 years ago...lots of really small leaves--for the botanists out there, the trees are wax myrtles. I asked the dealer to check it out when I had the X n for another problem. When I picked up the car he said it was fixed and there was no charge. This guy does nothing for free. He just said it just took a minute to 'blow them out' and they did it a lot down here.
Point being there may be an easier fix than the contortions that ommief went through.
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Old 12-08-2010, 08:03 AM   #4 (permalink)
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Now that's interesting, I wonder how they did that?? They can't be blown out the vents because the vanes on the blower motor are too narrow for the leaves to fit through. The only other way would be to blow them up & out the top and I don't know where they'd apply the blowing force to get that accomplished.
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Old 12-08-2010, 03:22 PM   #5 (permalink)
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Well, I called...they do the same thing you had to do. Pull the motor out. Sorry if I misinterpreted and misled. Didn't ask why they did it for free. So no secret fix.
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Old 04-10-2011, 05:22 PM   #6 (permalink)
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Damn. I couldn't seem to get to that back screw no matter what I tried. Unless I was after the wrong one, it's a real bear to get to. Ended up cursing (loudly) and buttoning it back up. Thanks to everyone for the tips on this. I have a buddy that has more of a selection of mechanics gear that maybe would make it a little easier.
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Old 04-10-2011, 11:04 PM   #7 (permalink)
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I put a 8mm socket on this flexible driver and I can pull a blower motor and/or power transistor out in a matter of seconds.
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Old 04-10-2011, 11:16 PM   #8 (permalink)
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After reading this, I just decided to turn up the radio instead of cleaning out my blower. Of course, I am the guy that had to have his wife reset the MRL.
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Old 04-10-2011, 11:28 PM   #9 (permalink)
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Quote:
Originally Posted by SuperTech View Post
I put a 8mm socket on this flexible driver and I can pull a blower motor and/or power transistor out in a matter of seconds.
Thanks for the low-down on that. I used an 8mm to get the "easy" two removed, and I think I could have had the third one off using a stubby 8mm socket. I just started to have visions of trying to reach to get the screw back on, and I lost my courage....for now. Hopefully I can borrow one of those flexi-drivers. Thanks again.
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Old 04-11-2011, 02:25 PM   #10 (permalink)
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I think I used a bunch of extensions on a socket wrench. Its easy to clean out the blower once you get that one off.

richez, bishop - you can do it! That buzz is annoying.
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Old 11-17-2012, 04:31 PM   #11 (permalink)
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Follow up on the dreaded leaf in the blower

To the original poster:

Thanks for the post. I have a 2003 MDX and I first performed this procedure about 4 years ago when I bought the MDX. At that time I did not do the "full" fix. Well, another leaf found its way in. I have to laugh because when you mention the part about shoving your head into the floor at an odd angle, all the wonderful memories came flooding back

And you know, it is amazing how much noise one little Aspen leaf can make.

Wish me luck. Last time the screws were already beat up. Had to use the flexibit on that final screw and it just barely caught.

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Old 11-17-2012, 10:53 PM   #12 (permalink)
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so where is this service bulletin?
How do I do it?

We had this awful noise a couple of months ago and thought the fan motor was failing..
Dealer cleaned it out for free but made it clear next time it wont be..

How are the leaves getting in?
I have never had a vehicle where leaves could get down in the fan motor..
is there a screen or something that can be added to block it?

thanks
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Old 11-18-2012, 01:09 PM   #13 (permalink)
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Here is the Service Bulletin. FYI: The door sill pops off if you pull on it. The other piece I had to remove I think is called the kick back panel (or perhaps the door opening trim. Regardless it has what looks to be a large black button holding it in place. That actually screws off. If you try to pop it off, it will break.

I think what people are calling a torx bit is what I call a flexabit -- it is about 6 inches long and flexible so you can bend it to reach the back screw. It fits into my impact drill instead of the phillips screwdriver head. The screwdriver head then fits into the end of the flexabit. It made the job much easier. I could direct the bit into the screw with my fingers, feel it in place (cuz ya can't see it) and then pull the trigger, softly. You could also use a wrench as outline above or a stubby screwdriver.

It is service bulletin 04-037. I have it but I am having trouble figuring out how to upload it as an attachment. Just search on the bulletin or "blower motor" and check out the other threads. It is out there. And if I figure out the upload, I will do so. thx

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Old 11-18-2012, 01:11 PM   #14 (permalink)
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Service Bulletin 04-037

Here it is.
Attached Files
File Type: pdf blower motor cleaning Service Bulletin 04-037.pdf (149.5 KB, 114 views)
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Old 11-19-2012, 01:00 AM   #15 (permalink)
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Thanks Douglas, very helpful..

I would hope since the dealer took care of this for me the first time that they would have installed the seals mentioned in the bulletin and hopefully it will prevent debris from getting in again..
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