4.7

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
22,312 miles

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problem #2

Jan 282008

Sienna 6-cyl

  • Automatic transmission
  • 28,025 miles
Twice I have had a tire stud break while replacing a tire, specifically the left front wheel on my 2004 Toyota Sienna with aluminum wheels. Both times the lug nut was being torqued to the correct setting of 76 ft-lbs.

- Caledonia, MS, USA

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problem #1

Oct 232004

Sienna

  • Automatic transmission
  • 16,600 miles
Left rear wheel stud broke when torqued to 85 ft.lb. Torque specs is 76 ftlb as mentioned in the owners manual; and if one stud can fracture at 85 ftlb, it is possible that the others have gone into yield zone, too. This is a very poor design and a safety risk. Design should be robust to handle DC nut runner, pneumatic drives, and manual drivers; which this stud was not capable to handle.

- Troy, MI, USA

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