Warning - Broken control arm bolt! - Page 6 - Toyota Yaris Forums

nookandcrannycar · 12-19-2012, 11:07 PM

Quote:

Originally Posted by MadMax

Got my letter today, doubt it will be an issue but will file it away just in case.

But I wonder how many people are going to start hearing noises based on their receipt of this letter?!?

LOL.....and more apt to hear it if within the new extended warranty.

Hershey · 12-19-2012, 11:16 PM

Could call Toyota customer service and ask if the T.S.B. is on its way . Think it's 1-800-331-4331 . May try it tomorrow .

nookandcrannycar · 12-19-2012, 11:23 PM

Quote:

Originally Posted by CTScott

Attachment 49360

Thanks. In addition to your garage being heated, you must have the most well lit garage in Connecticut! If I'm able to get a look at my Yaris on a rack (my tires are due for their free rotation

) and notice any rust at all on the head of either bolt, would that be reason enough to have it looked at by a Toyota dealer?.......Or would the lack of any of the sounds that others have described (and a lack of any other sound as well) mean that all is likely okay?

DebbyM46227 · 12-20-2012, 10:45 AM

Quote:

Originally Posted by Hershey

It's cheaper for TOYOTA to do a T.S.B. than a recall . It's up to the TOYOTA service centers to determine if needed under a T.S.B. . While a recall would make it a must . I wonder if the techs even know what to look for ? We've had the creaking for 2 years or more . Took it to the shop where the '08 sedan was bought new and they said it was fine . Said they couldn't duplicate the sound . Figures

. Just think how much time it would take to fix all YARII from '06 > '11 . It's about a 8 hour repair . That would be lots of money from TOYOTAs pocket due to labor , parts , and sales that could tarnish their reputation more .

I took mine in 2 or 3 weeks ago for the creaking (thunk) noise. Gave them the TSB I printed out from the forum. It's just 2 bolts they have to order and replace, not an 8 hour repair. Went back a couple days later and I was there 90 minutes.

DebbyM46227 · 12-20-2012, 10:48 AM

Quote:

Originally Posted by jRoss

I felt something weird when I was braking the other day, I went over a sewer drain and I swear I felt/heard something shift/rattle. I have a hunch this could be it.

That's when I first started hearing the rattle, more like a thunk sound. Since my bolts were replaced, I no longer hear it.

CTScott · 12-20-2012, 10:52 AM

Quote:

Originally Posted by DebbyM46227

I took mine in 2 or 3 weeks ago for the creaking noise. Gave them the TSB I printed out from the forum. It's just 2 bolts they have to order and replace, not an 8 hour repair. Went back a couple days later and I was there 90 minutes.

It actually takes me longer to put one of my cars on the lift than it does to swap out the bolts, but if one was sheared off, it would turn into a nightmare job, which is probably why the TSB lists it as an 8 hour job.

Hershey · 12-20-2012, 11:20 AM

Debbie is fortunate . Good to see it was a pleasant experience .

Hershey · 12-20-2012, 11:23 AM

One day we thought we heard a loud snap from the front as if something broke off due to being under pressure . Maybe it was debri on the road

.

CTScott · 12-20-2012, 03:02 PM

Quote:

Originally Posted by TOLMACH

Does it makes sense just not to wait till it brakes but to have it replaced?

Looks like I could do this even on my parkade without a lift (just by jacking the car)

I think so. I did all three of my Yaris a couple of months ago, just to be safe, for about $12 total.

nookandcrannycar · 12-20-2012, 07:33 PM

Quote:

Originally Posted by DebbyM46227

I took mine in 2 or 3 weeks ago for the creaking (thunk) noise. Gave them the TSB I printed out from the forum. It's just 2 bolts they have to order and replace, not an 8 hour repair. Went back a couple days later and I was there 90 minutes.

Thank you. This is very reassuring. My hesitancy re getting it checked out (even though sans noise) was fueled quite a bit by thinking an examination might likely equal a 'no return trip' to a repair that could end up taking 8 hours.

nookandcrannycar · 12-20-2012, 07:49 PM

Quote:

Originally Posted by CTScott

It actually takes me longer to put one of my cars on the lift than it does to swap out the bolts, but if one was sheared off, it would turn into a nightmare job, which is probably why the TSB lists it as an 8 hour job.

^^^^^

I wish Toyota (via the T.S.B) had described this the way you did above. It would have saved those of us who are out of warranty the thought of needing a potential 8 hour repair.

yariseggvvti · 12-20-2012, 09:47 PM

I took those bolt out two month ago and install UR lower 4 point bar. I dont see anything wrong with it.

Hershey · 12-21-2012, 01:02 AM

Called Toyota and they gave a reference number for when brought in . There's creaking from the rear end as well ( culprit ? ) . Have it in stereo at times

. Anyway , here are the bolts taken yesterday ( right ones I hope ) . Look o.k. ? Last , how does CT get his undercarriage so clean ?

CTScott · 12-21-2012, 06:56 AM

Quote:

Originally Posted by Hershey

Called Toyota and they gave a reference number for when brought in . There's creaking from the rear end as well ( culprit ? ) . Have it in stereo at times

. Anyway , here are the bolts taken yesterday ( right ones I hope ) . Look o.k. ? Last , how does CT get his undercarriage so clean ?

I would really like to see one of the bolts that has failed on someone's car.

With the size of the bolts I don't believe that they can rust deep enough to weaken enough to fail. I have a funny feeling that the bolts in question have an issue where they were made either too soft or too brittle.

For the rear creaking, the springs or rear brakes are usually the culprit of that one. My 09 was doing it and I hit the perches with a light coat of silicone oil and it went away.

Don't you wax the bottom of your car too?

Hershey · 12-21-2012, 11:06 AM

" I would really like to see one of the bolts that has failed on someone's car. "

Would be nice to see a picture of the snaaped off bolt . Very slim chance .

" With the size of the bolts I don't believe that they can rust deep enough to weaken enough to fail. I have a funny feeling that the bolts in question have an issue where they were made either too soft or too brittle. "

Makes sense .

" For the rear creaking, the springs or rear brakes are usually the culprit of that one. My 09 was doing it and I hit the perches with a light coat of silicone oil and it went away. "

Thanks .

" Don't you wax the bottom of your car too? "

No

. Don't wax the cars at all

. A lift sure would be helpful . Maybe Santa will drop one off .

CTScott · 12-23-2012, 08:31 PM

I ran into my old ones today and did a comparison with a set of new ones (I always keep some on hand in case someone comes by that hasn't had them replaced yet).

Bolts - Old New.jpg

My old ones, which had about 25,000 miles and 4 Winters on them just had light surface rust on the threads and very light surface rust at the base of the head. The interesting thing that I did notice is different markings on the head. In theory, this would mean a different bolt strength class, but according to the service manual, for a bolt with an included washer, either one or two marks means that the bolt is a class 6T bolt.

At least, if nothing more, the changed markings allow one to easily tell if they have new ones (old left, new right):

Bolts - Grade.jpg

edmscan · 12-23-2012, 10:59 PM

I would think that it would be in very extreme cases that those bolts would break. Rust .. yes maybe but I think that it would take some bad conditions to make them fail. But what do I know.

I will maybe have the Toyota dealer check on mine the next time I am there, next spring for my oil change.

Hershey · 12-24-2012, 10:49 AM

Thanks ! We have the old bolts

. Wonder if Yaris Claus ( a.k.a. CT ) will replace them Christmas . Will leave cookies , milk , and a socket wrench kit in the trunk .

12-23-2012, 08:31 PM	#106
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,450	I ran into my old ones today and did a comparison with a set of new ones (I always keep some on hand in case someone comes by that hasn't had them replaced yet). Bolts - Old New.jpg My old ones, which had about 25,000 miles and 4 Winters on them just had light surface rust on the threads and very light surface rust at the base of the head. The interesting thing that I did notice is different markings on the head. In theory, this would mean a different bolt strength class, but according to the service manual, for a bolt with an included washer, either one or two marks means that the bolt is a class 6T bolt. At least, if nothing more, the changed markings allow one to easily tell if they have new ones (old left, new right): Bolts - Grade.jpg __________________

12-24-2012, 10:49 AM	#108
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,894	Thanks ! We have the old bolts . Wonder if Yaris Claus ( a.k.a. CT ) will replace them Christmas . Will leave cookies , milk , and a socket wrench kit in the trunk . Last edited by Hershey; 12-24-2012 at 11:11 AM.

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12-19-2012, 11:16 PM	#92
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,894	Could call Toyota customer service and ask if the T.S.B. is on its way . Think it's 1-800-331-4331 . May try it tomorrow .

12-20-2012, 11:20 AM	#97
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,894	Debbie is fortunate . Good to see it was a pleasant experience .

12-20-2012, 11:23 AM	#98
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,894	One day we thought we heard a loud snap from the front as if something broke off due to being under pressure . Maybe it was debri on the road .

12-20-2012, 09:47 PM	#102
yariseggvvti Drives: Yaris Hatchieback Join Date: Jun 2010 Location: Cali Posts: 199	I took those bolt out two month ago and install UR lower 4 point bar. I dont see anything wrong with it.

12-21-2012, 11:06 AM	#105
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,894	" I would really like to see one of the bolts that has failed on someone's car. " Would be nice to see a picture of the snaaped off bolt . Very slim chance . " With the size of the bolts I don't believe that they can rust deep enough to weaken enough to fail. I have a funny feeling that the bolts in question have an issue where they were made either too soft or too brittle. " Makes sense . " For the rear creaking, the springs or rear brakes are usually the culprit of that one. My 09 was doing it and I hit the perches with a light coat of silicone oil and it went away. " Thanks . " Don't you wax the bottom of your car too? " No . Don't wax the cars at all . A lift sure would be helpful . Maybe Santa will drop one off .

12-23-2012, 10:59 PM	#107
edmscan Drives: 2020 Corolla Join Date: Apr 2012 Location: Canada Posts: 549	I would think that it would be in very extreme cases that those bolts would break. Rust .. yes maybe but I think that it would take some bad conditions to make them fail. But what do I know. I will maybe have the Toyota dealer check on mine the next time I am there, next spring for my oil change.