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CX-9 Resonant Vibration

26 messages,  Last post on Apr 17, 2009 at 5:26 AM

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What is this discussion about? Mazda CX-9, SUV


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#17 of 26
Re: [jay13] by paulmacnh
Nov 07, 2008 (2:15 pm)
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Replying to: jay13 (Oct 26, 2008 7:35 pm)

I have had a similar problem, and am happy to report that my dealer just fixed it.
 
On my 2008 AWD Touring CX-9, I experienced a vibration or low rumble between 25-30 mph under light acceleration. It was very annoying.Right around shifting 3rd to 4th gear. Rumble/vibration was occuring in 4th gear, and stopped right at 30 mph. It seemed to me that the transmission had shifted into 4th too early, and the engine was laboring. I was mistaken...
 
My dealer diagnosed the problem as the Drive shaft being out of round. This is a 3 piece drive shaft, that connects the front PTO to the rear gear box. They had the part overnighted, and problem solved... My CX-9 is now silky smooth... It behaved like this from new, and I had 2000 miles on it when repaired. I suspect they had a bad batch of drive shafts... I hope my experience helps those of you experiencing the same...
 
P
#18 of 26
Re: [paulmacnh] by elerner61
Nov 07, 2008 (6:41 pm)
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Replying to: paulmacnh (Nov 07, 2008 2:15 pm)

paulmacnh,
 
Can you tell me your VIN? I'd like to see if mine is in the same range.
 
Thx!
#19 of 26
Re: [elerner61] by paulmacnh
Nov 08, 2008 (6:05 am)
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Replying to: elerner61 (Nov 07, 2008 6:41 pm)

elerner61,
 
My VIN is JM3TB38V180146xxx
#20 of 26
Re: [paulmacnh] by woodredwood
Apr 03, 2009 (5:24 pm)
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Replying to: paulmacnh (Nov 08, 2008 6:05 am)

Here's the definitive answer. I just bought a brand new 2008 CX 9 (March of 2009) that had the same vibration issues. I brought it to The Mazda Gallery in Norwood, MA and they hadn't heard of the problem but would investigate. 5 minutes later they came up with TSB 01-0039/08. On vehicles built after Feb 21, 2008, "The no 2 dynamic chamber stay bracket was deleted....The absence of the No 2 stay can cause pedal vibration."
 
The bracket was ordered overnight and it took one hour to install. Vibration is gone! Car drives great.
#21 of 26
Re: [woodredwood] by not_2_shabby
Apr 06, 2009 (11:52 am)
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Replying to: woodredwood (Apr 03, 2009 5:24 pm)

Thank you very much for posting this. I have been wanting to get this looked at but figured it would be a wasted effort without a TSB to point to. I definitly have this problem and my car was built in April of 2008. What the heck is a dynamic chamber stay bracket though?
#22 of 26
Re: [woodredwood] by ceric
Apr 06, 2009 (12:37 pm)
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Replying to: woodredwood (Apr 03, 2009 5:24 pm)

Please list the TSB in the CX-9 TSB thread so that everyone can find it there easily. Thanks.
#23 of 26
Re: [not_2_shabby] by woodredwood
Apr 06, 2009 (1:04 pm)
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Replying to: not_2_shabby (Apr 06, 2009 11:52 am)

It's a bracket that somehow dampens the vibration but even with the TSB in my hand, I can't figure out what it attaches to! If you'd like a copy, send me your fax number. It was a 100% fix for the problem. Good luck.
#24 of 26
Vibration by woodredwood
Apr 06, 2009 (1:26 pm)
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Replying to: ceric (Apr 06, 2009 12:37 pm)

I'm new to the forum and don't know how to list the TSB in the CX-9 thread other than in this reply. If there is another place to list it, please do so. The TSB is #01-039/08 2008, " CX-9 Accelerator Pedal Vibration".
#25 of 26
Re: Vibration [woodredwood] by ceric
Apr 07, 2009 (9:42 am)
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Replying to: woodredwood (Apr 06, 2009 1:26 pm)

I copied the info you posted over that thread.
As long as people who look for CX9 TSB can find it over there, that thread serves its purpose.
#26 of 26
Re: [woodredwood] by not_2_shabby
Apr 17, 2009 (5:26 am)
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Replying to: woodredwood (Apr 06, 2009 1:04 pm)

I just got this bracket thing installed that was mentioned in the TSB. Difference is night and day. Thanks again for posting the TSB. That was the info I needed to get the issue addressed

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