Posted: 3/1/2011 12:57:38 AM EDT
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What would cause 3 lug nuts to shear off in one day? |
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Were the other lug nuts loose? I had it happen once when I just finger tightened some on a truck. I took off driving. A couple of miles down the road I thought something felt weird. I stopped and all the lug nuts were off and the wheel was fixing to fall 0ff. I got lucky. |
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Bent wheel maybe. I was thinking that but I haven't hit anything and it has been fine since I got the car. I drove it yesterday morning all good parked it then this morning I went to drive it and 3 lug nuts are on the ground... Just the nuts or were the studs still in the nuts on the ground? If it was just the nuts it sounds like someone was trying to steal your wheel and tire. |
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Quoted: Were the other lug nuts loose? I had it happen once when I just finger tightened some on a truck. I took off driving. A couple of miles down the road I thought something felt weird. I stopped and all the lug nuts were off and the wheel was fixing to fall 0ff. I got lucky. Quoted: Possibly all the lug nuts were loose to a degree? Odd that they would loosen like that.. |
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Quoted: Quoted: Quoted: Bent wheel maybe. I was thinking that but I haven't hit anything and it has been fine since I got the car. I drove it yesterday morning all good parked it then this morning I went to drive it and 3 lug nuts are on the ground... Just the nuts or were the studs still in the nuts on the ground? If it was just the nuts it sounds like someone was trying to steal your wheel and tire. Opps should have clarified. It is the stud and nut |
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Bent wheel maybe. I was thinking that but I haven't hit anything and it has been fine since I got the car. I drove it yesterday morning all good parked it then this morning I went to drive it and 3 lug nuts are on the ground... Just the nuts or were the studs still in the nuts on the ground? If it was just the nuts it sounds like someone was trying to steal your wheel and tire. Opps should have clarified. It is the stud and nut Steel wheel or Alum? |
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Quoted: Quoted: Quoted: Quoted: Quoted: Bent wheel maybe. I was thinking that but I haven't hit anything and it has been fine since I got the car. I drove it yesterday morning all good parked it then this morning I went to drive it and 3 lug nuts are on the ground... Just the nuts or were the studs still in the nuts on the ground? If it was just the nuts it sounds like someone was trying to steal your wheel and tire. Opps should have clarified. It is the stud and nut Steel wheel or Alum? Alum |
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All three studs next to each other or spread out? All 3 are next to each other I can't think of anything other than a bent wheel or someone tried to jack your wheels. Tire shop will be able to tell if your wheel is bent pretty easily. I might suggest replacing the other studs while you're at it too. |
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Quoted: Quoted: Quoted: All three studs next to each other or spread out? All 3 are next to each other I can't think of anything other than a bent wheel or someone tried to jack your wheels. Tire shop will be able to tell if your wheel is bent pretty easily. I might suggest replacing the other studs while you're at it too. Yeah I am planning to replace them.. So is replacing the studs a diy job or something that should be left to a pro?  Looks easy enough.. |
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Yeah I am planning to replace them.. So is replacing the studs a diy job or something that should be left to a pro?  http://www.youtube.com/watch?v=gy9t1mU0lG0
Looks easy enough.. Can't see your vid atm. Whats this on? Idk what you're experiance is but its easy enough for the weekend wrencher type. Assuming they're just drive in studs you can substitue a press with BFH and some 2x4s |
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Quoted: Quoted: Yeah I am planning to replace them.. So is replacing the studs a diy job or something that should be left to a pro? http://www.youtube.com/watch?v=gy9t1mU0lG0Looks easy enough.. Can't see your vid atm. Whats this on? Idk what you're experiance is but its easy enough for the weekend wrencher type. Assuming they're just drive in studs you can substitue a press with BFH and some 2x4s Its on a 1994 GMC Jimmy I have replaced the 4x4 vacuum switch on the transfer case and the vacuum actuator, changed the front brakes myself so I think I can figure it out. Just never messed with drum brakes which I assume I will need to remove to get to the axle. |
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Did/do you have your tires changed/rotated by one of the usual suspects? (walmart, Cosco, a chain tire place) I bet they used a impact gun to mount them and cracked/fatigued the studs. It will take a hell of an impact to sheer off the studs. Generally when someone over torques a lug nut it will bugger up the threads (on the nut by compressing the leading tapered lip of the nut) making it next to impossible to to loosen the lug nuts. I would be real concerned if this happened to my truck and would consider replacing all of the studs on the axle on both sides of the vehicle operating under the assumption that the studs were defective. |
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Quoted: Quoted: Did/do you have your tires changed/rotated by one of the usual suspects? (walmart, Cosco, a chain tire place) I bet they used a impact gun to mount them and cracked/fatigued the studs. It will take a hell of an impact to sheer off the studs. Generally when someone over torques a lug nut it will bugger up the threads (on the nut by compressing the leading tapered lip of the nut) making it next to impossible to to loosen the lug nuts. I would be real concerned if this happened to my truck and would consider replacing all of the studs on the axle on both sides of the vehicle operating under the assumption that the studs were defective. About 8 months ago I had all 4 tires replaced so it could be a possibility though it is odd all 3 drop off at once after 8 months.. |
| With drum brakes on older vehicles if you use cheapo brake drums, the stud hole are oversized. This allows a certain amount of movement when the brakes are applied; the brake drum slows while the wheel and studs are still moving, slapping the drum against the studs ( usually accentuated by DIYers who glob on a bunch of anti-seize to keep the aluminum wheel from stickin to the steel drum, im guilty of it too) This can cause wear spots on them and a weak area that they can fracture at. Happened to me 2 times with an older Toyota. I ended up replacing all the studs and up grading to better drum and the problem stopped. |
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Does anyone else drive the car sometimes maybe hits curbs a lot?
I was in a Lincoln town car as a passenger once,a couple hundred miles from home on the way to a James Brown concert at UVT when the studs broke off on the highway. It acted like a flat tire. We pulled over and I got out to change it,it didn't look flat so I kicked it and the whole thing moved. Never got to see James Brown.  I got to hear one of the funniest things ever from one of the troopers that came to help us though,4 kids on the way to a concert so they searched the car. One of the was going through the trunk found some film canisters a was so dumbstruck by what he found he called another officer over,"Hey Charlie you gotta see this. They have FILM in these film canisters,I can't believe it I've never found film in film canisters."
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Some aluminum wheels need retorqued over time. It sounds like your nuts either worked loose or wasn't torqued correctly last time they were put on. I had a local shop install 2 used tires for me last year. The used tires vibrated like crazy so the same day we drove 40 miles to wal-mart to buy 2 more new tires and to get the other 2 rebalanced and they found 3 broken lugs and the other 3 were all loose on one of the wheels the local guy had worked on.. 
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With drum brakes on older vehicles if you use cheapo brake drums, the stud hole are oversized. This allows a certain amount of movement when the brakes are applied; the brake drum slows while the wheel and studs are still moving, slapping the drum against the studs ( usually accentuated by DIYers who glob on a bunch of anti-seize to keep the aluminum wheel from stickin to the steel drum, im guilty of it too) This can cause wear spots on them and a weak area that they can fracture at. Happened to me 2 times with an older Toyota. I ended up replacing all the studs and up grading to better drum and the problem stopped. That sounds interesting. All I was going to say is maybe somebody tightened the lug nuts with the wheel supporting the vehicle's weight. People like to lower the vehicle onto the wheel when tightening lugs to keep it from spinning. Bad ju-ju. |