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Old 05-24-2011, 04:44 PM   #91 (permalink)
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Other than the hard shifts, did you notice any rumbling around 35-45mph? Hard shift points could be the mounts going bad.
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Old 05-25-2011, 05:52 PM   #92 (permalink)
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For everyone interested, I have updated the Wiki MDX page to include mention of this thread for 05-06 models.
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Old 06-11-2011, 11:21 PM   #93 (permalink)
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Just got this done today at the not-so-local Acura dealership because the Honda dealer that's close wouldn't do it.

Certainly not a magic fix, there are still some hard shifts going on but time will tell if it's better slowing down from highway speeds.
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Old 08-21-2011, 09:46 PM   #94 (permalink)
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Just purchased a used MDX

So, I took a chance and bought a used 2006 MDX with 102k miles (no warranty). I thought to myself, it's an Acura, you can't go wrong. Then, the juddering started, which is odd since it didn't do it during the test drive. I think that is what it is. To me it's a grinding sound that last for 5 to 10 seconds. Is the juddering / grinding the same thing?

Anyway, I am going to find out if the PCM update was done? You would think if Acura has it on the lot, they would do all the recall work. Wouldn't they?
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Old 08-22-2011, 11:30 AM   #95 (permalink)
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So, I took a chance and bought a used 2006 MDX with 102k miles (no warranty). I thought to myself, it's an Acura, you can't go wrong. Then, the juddering started, which is odd since it didn't do it during the test drive. I think that is what it is. To me it's a grinding sound that last for 5 to 10 seconds. Is the juddering / grinding the same thing?

Anyway, I am going to find out if the PCM update was done? You would think if Acura has it on the lot, they would do all the recall work. Wouldn't they?
They claimed it was done. So, I am not sure what is going on.
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Old 08-23-2011, 01:02 AM   #96 (permalink)
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If its grinds for a short period it might not be trans related. Does it feel like riding over rumble strips. Like its in too low of a gear for rpm.
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Old 09-13-2011, 11:15 PM   #97 (permalink)
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I had the PCM updated on my 2005 MDX at 155000 km and the transmission vibration which was occasional at 1500 rpm has vanished. But I felt that shifting had become a little rough. last weekend, I drained and fill (x3) newer transmission fluid (DW1) at 157,700 km and noticed that rough shifting has significantly become smoother. Also changed the VTM-4 fluid. Will do the transfer case fluid change next week-end. All this maintenance was not possible without the help of this forum. Thanks to all.
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Old 09-28-2011, 02:37 PM   #98 (permalink)
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The '07+ has been pretty bulletproof. Up until today, my dealer had never pulled a single transmission out of one.

But the one I did had the exact same "rumble strip" symptom that's common to the 1st gen MDX. I wanted to replace the whole transmission, but corporate blocked my order and said to just replace the T/C and that "a software update will be out soon."

i check the TSB for 07-09MDX and found nothing related to that. do you know if Acura had release the update or it still in work? i also wonder if dealer tech can go into PCM and just program the parameter instead of waiting for complete ROM flash? thanks!!
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Old 12-03-2012, 02:05 AM   #99 (permalink)
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Alas, the 2007 models have this issue as well -- see this thread for more...
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Old 12-05-2012, 05:05 AM   #100 (permalink)
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Friend with 05 pilot has the 30-40mph judders. Is the box on those the same?
How does the update work?


Sent from my iPhone using AutoGuide.com App
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Old 12-05-2012, 08:10 AM   #101 (permalink)
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Friend with 05 pilot has the 30-40mph judders. Is the box on those the same?
How does the update work?


Sent from my iPhone using AutoGuide.com App
The update should apply, I think all the info you want is in this thread.
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