2005 Pontiac Sunfire Lug Nuts Keep Breaking?

[Jesshika]

I bought my 05' Pontiac Sunfire 4 years ago brand new and within about 3 years, 3 different lug nut studs have broken on the same tire, (the front left). I took it in to the mechanic and they said that the manufacturer makes the studs weak, so they will eventually break off? Is that true or are they just trying to make me pay for the lugnuts they broke off?

 

[who]

I'm sure you may hit a curb or two? but the fact of the problem is that they do wear out by not tighting them at the routine maintence mileage check every 30,000km.
I would check them every time I bought a new tire for it or rims.

 

[Matt R]

its true that vehicle are made to eventually break down so that you have to buy parts....I believe that to be true. But this sounds different. You may have a problem with suspension on that wheel or you may be turning the vehicle to hars or fast when turning right and putting to much stress on those lugs. try takin it easy on that gas pedal and enjoy the drive. its not a race

 

[melsg5]

The legal liability of a manufacturer intentional making weak lugs nuts would be enormous. Do you have factory wheels on the car? Is the person installing the wheels using an impact gun set to too high a torque value, I believe 100 ft/lbs is correct. Did you have an accident of any kind involving that part of the car?