2009 mazda 6 locks up on the road - Mazda 6 Forums : Mazda 6 / Mazda Atenza Forum

mlfn · 02-21-2009, 09:27 AM

I am extremely frustrated by two visits to the dealership here in Arlington without results.
On three different occasions since November in my brand new '09 Mazda 6 (<3050 miles) the car has been fine and then suddenly starts shaking and quaking and "pulling back" it seems --- hard to go faster, though who would want to, shaking like that? _ and it won't stop till I stop and start again.
No light comes on and it doesn't happen again for a few months.
Common factors seem to be: 1. curvy road; 2. maybe braking on and off; 3. going over 45, often around 63, and 4. after driving for at least 30 minutes.

Anyone else having this happen? Any ideas?

MLFN

michaelsteinbach · 02-21-2009, 03:17 PM

Which engine?

I'm in a '09 6s and haven't had that problem...but i also don't fit numbers 1 and 4 on your common factors.

~Mike

6er · 02-21-2009, 06:13 PM

hmmm... the autos have the Adaptive Shift Control from the RX-8...it holds gears in corners for faster exit. Think a software issue in that area could explain this?

macdaddy · 03-12-2009, 11:34 PM

sounds like you've kicked in the stability control system. A couple of your common factors:
1. curvy road
2. driving fast
combined with the results
a. pulling back
b. shaking and quaking.

well, after I started typing I see that you say it doesn't stop until you stop the car and start over. that sounds like a defect of some kind. Normally functioning systems release after the vehicle becomes stable.

Tell the dealer to check the mounting of the stabilty control sensor i.e. yaw rate sensor. hypothetically, if it were loose, or mounted on a flimsy bracket, it could vibrate on it's own and think that the car is driven wildly. The problem here is that if that's what it is, it should occur more than every few months.

you could also ask them to check the centering of the steering angle sensor. If that's off to one side, like if the wheel is pulled and repositioned, then the system can become more biased in one direction than the other.

Have you tried the override switch to see if it affects the outcome?

02-21-2009, 03:17 PM	#2 (permalink)
michaelsteinbach Track Racer Join Date: Sep 2008 Location: Carbondale, IL Posts: 480 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	Which engine? I'm in a '09 6s and haven't had that problem...but i also don't fit numbers 1 and 4 on your common factors. ~Mike __________________ 2009 Mazda 6 GT in Sangria Red.

02-21-2009, 06:13 PM	#3 (permalink)
6er Track Racer Join Date: Dec 2008 Posts: 324 Thanks: 0 Thanked 1 Time in 1 Post Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	hmmm... the autos have the Adaptive Shift Control from the RX-8...it holds gears in corners for faster exit. Think a software issue in that area could explain this? __________________ The Xbox 360, however, has set out to put all previous console gremlins to shame. Among the many 360s in IGN offices and homes the failure rate has been staggering and the replacement process long and aggravating. - IGN, April 28, 2006 2009 Mazda 6s Touring - Onyx 2009 Toyota Corolla S - Classic Silver Metallic (Wife's Car)

02-21-2009, 09:27 AM	#1 (permalink)
mlfn Learners License Join Date: Feb 2009 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	I am extremely frustrated by two visits to the dealership here in Arlington without results. On three different occasions since November in my brand new '09 Mazda 6 (<3050 miles) the car has been fine and then suddenly starts shaking and quaking and "pulling back" it seems --- hard to go faster, though who would want to, shaking like that? _ and it won't stop till I stop and start again. No light comes on and it doesn't happen again for a few months. Common factors seem to be: 1. curvy road; 2. maybe braking on and off; 3. going over 45, often around 63, and 4. after driving for at least 30 minutes. Anyone else having this happen? Any ideas? MLFN

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03-12-2009, 11:34 PM	#4 (permalink)
macdaddy Learners License Join Date: Mar 2007 Posts: 15 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	sounds like you've kicked in the stability control system. A couple of your common factors: 1. curvy road 2. driving fast combined with the results a. pulling back b. shaking and quaking. well, after I started typing I see that you say it doesn't stop until you stop the car and start over. that sounds like a defect of some kind. Normally functioning systems release after the vehicle becomes stable. Tell the dealer to check the mounting of the stabilty control sensor i.e. yaw rate sensor. hypothetically, if it were loose, or mounted on a flimsy bracket, it could vibrate on it's own and think that the car is driven wildly. The problem here is that if that's what it is, it should occur more than every few months. you could also ask them to check the centering of the steering angle sensor. If that's off to one side, like if the wheel is pulled and repositioned, then the system can become more biased in one direction than the other. Have you tried the override switch to see if it affects the outcome?