Last post on Dec 08, 2013 at 1:46 PM
You are in the Acura MDX
What is this discussion about?
Acura MDX, SUV
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#912 of 996 2009 MDX Torque Converter Recall
Nov 02, 2012 (7:33 am)
I recently purchased a pre-owned 2009 MDX with 37K Miles. It is still under the 'bumper to bumper' warranty. After noticing a noise in, what I thought, was the transmission when driving slow at 25 - 30 MPH in my neighborhood. The noise sounded as if I was driving along the rumble strips along side the highway. Albeit somewhat subtle compared to the highway noise and subtle vibration.
After explaining to the dealership they said this is a recall. The first step is to "update" the computer system. This should work depending on how long the torque converter issue has been happening. If the computer system update does not fix the issue they have to contact Acura HQ to look into having the entire Torque converter replaced. This is what is currently taking place for my car as we speak.
Again, covered under warranty/recall. This sounds similar to some of the other posts.
I'm in Charleston, SC and took my vehicle to McDaniels ACURA.
#913 of 996 Re: 2009 MDX Torque Converter Recall [nathano]
Nov 02, 2012 (7:57 am)
This may be very bad news. Acura switched the MDX from the VTM-4 F/awd system to the SH-AWD system to combat this very issue/problem. Didn't the switch occur prior to 2009?
I have assumed having both the front and rear axles in "drive" mode, even if only during acceleration, on a highly tractive surface is at the core of the problem so the "update" may serve to lessen the use of the rear drive capability.
#915 of 996 Re: Faulty mpg [dc1225]
Nov 02, 2012 (11:56 am)
All modern day passenger vehicle automatic transissions, ALL, industry wide, are now making "liberal" use of the TC's lockup clutch to improve FE. So the lockup clutch must be much more ROBUST vs yesteryear since it is now used much more of the time to bypass the lossy TC.
These days the only time the TC is unlocked is under acceleration, stopped, if the roadspeed is too low, or if brakes are applied to a level that would stall the engine if the TC remained locked.
Then you throw in the additional heat/stress on the driveline components with the rear drive engaged under acceleration on a perfectly TRACTIVE roadbed and you have a recipe for premature failure.
So it is entirely possible that the TSB reduces the use of the lockup clutch in order to extend its service life which in turn would result in lower MPG.
#916 of 996 Re: Faulty mpg [wwest]
Nov 02, 2012 (12:40 pm)
So what you are saying is that Japanese are better liars than Koreans? Couldn't agree more. At least Kia came out admitted fault and apologized.
#917 of 996 Re: Faulty mpg [dc1225]
Nov 02, 2012 (12:56 pm)
The Japanese culture does NOT allow for admission of fault therefore most certainly NEVER an apology.
#918 of 996 Re: Faulty mpg [wwest]
Nov 02, 2012 (1:47 pm)
You're absolutely right, they usually kill themselves over shame. Well i hope whoever did this at Acura commits harikari ASAP!
#919 of 996 Re: Faulty mpg [dc1225]
Nov 03, 2012 (9:34 am)
This is very interesting! How do we go about filing claims of the overstated gas mileage ????? I have a 2010 MDX, I have never gotten over 15 mpg. I asked my dealer about this and they said Acura basically over inflated the tires and that is how they got the higher gas rating. That's ridiculous. The dealership even knows that Acura is lying about the gas mileage. I currently average 14.5 MPG, that is unacceptable!
#920 of 996 Re: Should I buy a new Acura MDX [spicydoc]
Nov 03, 2012 (7:02 pm)
I just got a new 2012 MDX, everyting seems perfect (mechanical wise, there is a paint issue i just found and i will talk to the dealer...) so far except that when i drive uphill, there is a obvious hesitation or delay (should not like this in my opinion for such pricy SUV...) and the speedometer will jump from 1 to 2 and 2 to 1 within few seconds"...
i will be talking to the dealer sales rep. tomorrow to see what they say about it...
#921 of 996 2004 Acura MDX Transmission Problems
Nov 09, 2012 (12:07 am)
I am stunned to learn after reading on this website that there have been so many MDX transmission problems! I purchased my 2004 Acura MDX new from our local dealer and purchased the extended warranty. It was my first ever brand new car—and at $42,100 plus $2675 for the extended warranty, it was an expensive purchase! Since then I have always taken my car to that same dealership for servicing. At 75,658 miles (just a few months after the 75,000 regular transmission service) the engine malfunction light came on. There had been no drivability problems at that point. After two trips to the dealership, they concluded that a new transmission was needed and replaced it. Fortunately, because of the extended warranty, there was no additional cost to me. One month after that, the engine malfunction light came on again—but this time they replaced a transmission pressure switch. Two months after that the engine malfunction light came on again—but this time it was fixed by updating the PCM software. It made me wonder if a new transmission was really needed in the first place, but was thankful that everything was covered under the extended warranty.
Now, fast forward 4 years…and now the MDX has 156,000 miles. It was serviced last week, and at that time I mentioned that during city driving it would upshift early and the engine would lug. Guess what!? The dealership is saying that I need a new transmission and torque converter which is $6000+. When I reminded them that they had already replaced the transmission 4 years ago, they contacted Acura corporate and agreed to discount my cost to $2300. It has been a wonderful vehicle to drive—but seriously—a new transmission every 75,000 miles? My Michelin tires have lasted as long! Frankly, I am not sure that it is worth replacing. I am really disappointed especially since I had a good relationship with the dealership. If anyone has any recommendations, I would greatly appreciate them.