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Acura MDX Transmission Problems

133 messages,  Last post on Nov 03, 2009 at 7:14 PM

You are in the Acura MDX Forum. Your Hosts are steve_ & tidester

What is this discussion about? Acura MDX, SUV


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#38 of 133
Re: Mysterious Jerking [jkotlar] by skoobahead1
Dec 06, 2008 (8:28 pm)
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Replying to: jkotlar (Dec 05, 2008 8:05 am)

jkotlar,
 
My downshift on my '05 is very suttle at 35MPH when the engine speed is below 1000 RPM. The tach jumps up maybe 300 rpm..This is the only time I feel a downshift. If my engine speed is above 1000 RPM I feel nothing and the tach does not move while decelerating through 35MPH.
When is your "rough' downshift happening? What speed and what engine RPM?
#39 of 133
Re: Mysterious Jerking [skoobahead1] by jkotlar
Dec 07, 2008 (8:38 am)
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Replying to: skoobahead1 (Dec 06, 2008 8:28 pm)

That is exactly what I feel and exactly the same RPM and speed (30-35mph). I don't know if I'd consider it "subtle," though.. the car jerks a little. I can definitely feel it. Have you taken yours to the dealership?
#40 of 133
Re: Mysterious Jerking [jkotlar] by skoobahead1
Dec 07, 2008 (3:21 pm)
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Replying to: jkotlar (Dec 07, 2008 8:38 am)

A 300 RPM downshift increase under those conditions is not a transmission problem.The transmission is downshifting. Its completely normal for this vehicle. It's not a CVT. I can't speak for your MDX but my downshift is subtle. A harsh downshift would cause your RPM increase to be much higher. If another owner has one that doesn't have this downshift characteristic please chime in. I'd be surprised.
#41 of 133
by jkotlar
Dec 07, 2008 (3:42 pm)
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My only issue with that is that the dealership apparently is unaware that this is a normal thing with the MDX. They said that the tech was able to duplicate the problem - and the first time I had it in the shop, they replaced the transmission! The car has less than 50k miles on it!
#42 of 133
Re: [jkotlar] by skoobahead1
Dec 07, 2008 (4:57 pm)
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Replying to: jkotlar (Dec 07, 2008 3:42 pm)

If the 300 RPM "bump" happened on your original transmission and it happens on your rebuilt it sure seems more than coincidental.Perhaps other MDX owners will chime in with what their vehicle does in the same situation. If I were you and had spent all this time on this issue I think I would ask your dealership to drive another '05 MDX on their lot and see for sure. Keep us posted as it sure is a tough decision to keep this nice vehicle past it's warranty if we have to shell out $4500.00 for transmission work.
#43 of 133
Re: [skoobahead1] by jkotlar
Dec 08, 2008 (12:58 pm)
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Replying to: skoobahead1 (Dec 07, 2008 4:57 pm)

Well, the nice thing is that I do have the new transmission, so the transmission itself has another 3 years, 36k mile warranty. This has been my only issue with this car. I'm not giving up on it yet!
#44 of 133
I am the Lucky one by tpulak
Dec 09, 2008 (3:20 pm)
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Replying to: jkotlar (Dec 08, 2008 12:58 pm)

Well, maybe I am the lucky one for now, because the only problem I suppose I had with the tranny was that 1 jolt I had for 5 sec. Besides that, this car is as good as new. So maybe this was just a momentary slip I had that day. So hopefully, this car will run properly in the years to come.
#45 of 133
Vibration, growl, rumble noise at low RPM '05 MDX by krnl4life
Dec 20, 2008 (12:05 pm)
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Replying to: tpulak (Dec 04, 2008 9:30 pm)

'05 MDX Touring
53,000 miles (just out of warranty)
Ocasional growl noticed when above 30 mph and you let off the gas to let RPMs drop below 1.5.
 
Background:
'02 TL-S with 103,000 miles - Tranny replaced under warrenty at 35k miles, and replaced AGAIN at 99k miles (also covered under warranty). Then had the 105mile maintenance done: plugs, water pump, & timing belt =$1200 (Oh, by the way, my old timing belt looked brand new-probably could've gone another 50k without the maintenance)
All performed at an Acura dealership (1st tranny was at a diff't dealer)
 
Problem arose with the MDX and the guy at Acura dealership said sounds like a Torque Converter problem, Acura might cover some of the repair since I'm close to warranty and have had most of my work done there. I was a little insistent that Acura should take full responsibility for a problem like this, and he said he'd talk to the rep and plead my case.
Torque converter replaced, transmission flushed, Acura covered all repairs.
I'm just a bit regretful that I didn't have the tranny replaced too.
Any thoughts or results from people who've only had the TC replaced?
These vehicles and service at Acura dealerships are great, I just wish the engineers could get their transmissions right, the first or second time.
Thanks
#46 of 133
Re: [jkotlar] by kar2
Dec 28, 2008 (2:27 pm)
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Replying to: jkotlar (Dec 08, 2008 12:58 pm)

I'm having the exact same issue on my 05 mdx: downshifting at about 35mph is a bit rough and jerks a little. Only happens when I've been driving over 45mph. I don't notice any changes in the rpm when this happens. It's something I've just started noticing (car is about 62,000 miles) and isn't really bad but enough for me to notice, especially since I'm concerned about it.
 
I'm wondering if jkotlar's dealer figured out anything yet. I haven't taken the car into the dealer, but I'd be very hesitant to have to consider replacing the transmission if they say that's the problem... especially if replacing it won't solve the problem anyway! I'd rather just live with this problem if its not fixable rather than pay $$$ for something that won't help!
#47 of 133
Re: [kar2] by jkotlar
Dec 29, 2008 (4:06 pm)
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Replying to: kar2 (Dec 28, 2008 2:27 pm)

kar2: The tranny still jerked after it was replaced. 2 dealers told me it was a normal downshift. I would take it in and have them check for software updates for the computer. Tell them to look at the transmission and make sure everything is ok. I don't know if I'm 100% convinced that its normal, but a friend of mine (who is a service manager for Acura) said his wife's 03 MDX does the same thing.
 
I'll let you know if I hear anything else! Keep us posted, too!

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