Broken lug bolt.... how can that be? - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 04-03-2011, 12:15 PM
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Canada Broken lug bolt.... how can that be?

HI everyone,
We have a 2009 Venza, was changing over to the summer tires today. Was torquing the wheel on with my torque wrench at 96lb/ft. The screw part of the hub broke right off. Has this happened to anyone????? I hope warranty will cover this, I see it more of a safety concern if it breaks so easily...Very disappointed, will be calling the dealer tommorrow morning to bring it in.

If anyone has had a similar issue, let me know.

Thanks,

2009 Venza V6 AWD with Touring package - Blizzard White.

Last edited by Neb; 04-03-2011 at 12:17 PM.
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#2 Old 04-03-2011, 01:03 PM
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The correct wheel nut torque for most Toyota/Lexuis autos is 76 ft-lbs. Check owners manual.
It seems odd that the stud should have broken off with comparatively little over-torquing, but you got the same result. Also you can warp the brake rotors by overtorquing. You can cross that bridge if you come to it.

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#3 Old 04-06-2011, 11:42 AM
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To update, the dealer were hesitant on replacing it under warranty. But after explaining the story to them again and again they finally agree to put it under warranty. Part was probably $2.

2009 Venza V6 AWD with Touring package - Blizzard White.
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#4 Old 04-06-2011, 01:15 PM
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Quote:
Originally Posted by dlm1942 View Post
The correct wheel nut torque for most Toyota/Lexuis autos is 76 ft-lbs. Check owners manual.
It seems odd that the stud should have broken off with comparatively little over-torquing, but you got the same result. Also you can warp the brake rotors by overtorquing. You can cross that bridge if you come to it.
Correct, according to the manual, the torque for the Venza is 76 ft-lb.

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#5 Old 04-06-2011, 11:16 PM
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Originally Posted by Neb View Post
HI everyone,
We have a 2009 Venza, was changing over to the summer tires today. Was torquing the wheel on with my torque wrench at 96lb/ft.
Why did you set the wrench at 96 lb/ft?
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#6 Old 04-08-2011, 08:07 AM
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The 5th Gen 4runners are having this happen alot even when the torque is set at the correct setting.


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#7 Old 10-24-2011, 09:39 AM
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Are the bolts 19mm?
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#8 Old 10-25-2011, 12:16 AM
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How did u get the broken bolt off ? or did the dealer take care of that?
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#9 Old 10-25-2011, 11:51 PM
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Quote:
Originally Posted by Neb View Post
HI everyone,
We have a 2009 Venza, was changing over to the summer tires today. Was torquing the wheel on with my torque wrench at 96lb/ft. The screw part of the hub broke right off. Has this happened to anyone????? I hope warranty will cover this, I see it more of a safety concern if it breaks so easily...Very disappointed, will be calling the dealer tommorrow morning to bring it in.

If anyone has had a similar issue, let me know.

Thanks,
I had the same broken lug at one point when I was washing the car and found out. I never replaced tires or did anything with it. Took it back to the dealer, they replaced with a new set of lock under warranty. Either the quality of the bolts are bad or when dealer rotated my tires during service used wrong torque. But my sense the quality was not as good; that makes me worried too.
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#10 Old 10-26-2011, 08:41 AM
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Wheel studs rarely break unless they are over torqued.. stretched or a wheel is not mounted properly. I wouldn't worry about them breaking on their own, it's highly likely that someone at some point over torqued the lug.. or torqued it correctly but had previously put anti-seize on the threads in error (this will cause the torque to look like one number but actually be a lot more)... did this myself before.. lesson learned.
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#11 Old 10-29-2011, 11:55 AM
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Actually, it happens more often then you all might think. When I worked in the shop I saw all sorts of cars come in about once a week or so with a broken wheel stud. I've had 2 cars of my own that have broken wheel studs over time.

They're cheap and easy to replace and if push comes to shove-you can drive the car for a bit with one missing.

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