Front Lower Control Arm Crossthreaded
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Joined: May 2017
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From: MD
Front Lower Control Arm Crossthreaded
I changed my front lower control arms probably over a year ago and did run into some problems, but thought it was solved, until now. Seems like one of the control arm bolts that bolts into the frame is crossthreaded, it just keeps spinning when I tighten or loosen it, but it takes a good amount of torque to get it to move. Is there a welded nut or something in the frame? I'm assuming that came loose and I'm unsure how to fix it. The other bolts are fine and torqued to spec.
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Joined: Feb 2014
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From: FL
How did you miss the cross-threading when you replaced it?
I assume you are referring to one of the two bolts that are next to each other in the middle of the arm. I thought the frame was threaded for those two bolts, when I replaced mine.
Maybe you could add some JB weld (or a similar epoxy) to the perimeter of the bolt head to keep it from moving and loosening.
I assume you are referring to one of the two bolts that are next to each other in the middle of the arm. I thought the frame was threaded for those two bolts, when I replaced mine.
Maybe you could add some JB weld (or a similar epoxy) to the perimeter of the bolt head to keep it from moving and loosening.
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Joined: May 2017
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From: MD
How did you miss the cross-threading when you replaced it?
I assume you are referring to one of the two bolts that are next to each other in the middle of the arm. I thought the frame was threaded for those two bolts, when I replaced mine.
Maybe you could add some JB weld (or a similar epoxy) to the perimeter of the bolt head to keep it from moving and loosening.
I assume you are referring to one of the two bolts that are next to each other in the middle of the arm. I thought the frame was threaded for those two bolts, when I replaced mine.
Maybe you could add some JB weld (or a similar epoxy) to the perimeter of the bolt head to keep it from moving and loosening.
Also, it's not loosening, it just feels loose, it seems like whatever it's threaded into was knocked out inside of the frame; that's why I'm assuming there was some welded nut on the inside that came off and it's the reason why I can no longer loosen or tighten down the bolt. So maybe I'm using the wrong terminology depending on how the frame is threaded. I'm thinking of getting a shop to just weld that portion onto the frame, it's highly unlikely I'm going to replace the LCAs again in the future, the vehicle will probably be toast/scrapped by then, or might just go with your option of using JB Weld; the control arm is flush to the frame and there is minimal movement in the bolt.
Last edited by gookies; Nov 3, 2018 at 07:07 PM.
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Joined: May 2017
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From: MD
Did you understand what's wrong? There's nothing wrong with the LCA, it's the threaded portion in the frame.
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Joined: Apr 2001
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From: Austin, TX
I did replace the LCA on RX but dont remember much as it was uneventful.
While working on rear, i had to remove the long frame [body really] bolts. The nuts had a dove-tail type of piece welded to them. This allowed the nut to spin till it hit the blockage and then the bolt started tightening or loosening. Almost 320 degrees of free spin.
It maybe worth looking at the parts diagram to see what is going on with the nut.
Another trick is to increase friction by pulling out the bolt with a screwdriver or crowbar.
Last tip is .. make sure you are using the right length bolt in the right hole.
Salim
While working on rear, i had to remove the long frame [body really] bolts. The nuts had a dove-tail type of piece welded to them. This allowed the nut to spin till it hit the blockage and then the bolt started tightening or loosening. Almost 320 degrees of free spin.
It maybe worth looking at the parts diagram to see what is going on with the nut.
Another trick is to increase friction by pulling out the bolt with a screwdriver or crowbar.
Last tip is .. make sure you are using the right length bolt in the right hole.
Salim
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