Suspension and Chassis Questions about your suspension? Need chassis advice?

Front end knock. Please help.

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Old 07-27-2013, 12:36 PM
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Front end knock. Please help.

I have a front end knock when I first pull away and when I am turning. It's pretty loud knock. I recently replaces the struts, a-arms, and sport line springs. I am about to drive me car back to Michigan from north Carolina and I need to fix the problem before hand. I have the car up on jacks. I don't see anything out of place or loose. Any help would be great! Thanks
Old 07-27-2013, 04:23 PM
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Re: Front end knock. Please help.

Does it happen only when your backing out and turning?
Old 07-27-2013, 05:25 PM
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Re: Front end knock. Please help.

Yes. I dont have any sound when i am cruising!
Old 07-27-2013, 05:46 PM
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Re: Front end knock. Please help.

Try tightening your six K member bolts. They are known to come loose and sometimes even fall out. (So if you have less than 6 then some have already fallen out)

I learned that my self and from others experiences, it only made a creaking/knocking noise when backing out of the drive way and turning the wheel. It never did it while driving forward.

That's just ones suggesting out of many that I could suggest. Have you tried narrowing down the noise and where it comes from?

I would try the k member bolts and if that does not help then there are still a few more possibilities. Just try the easy stuff first.
Old 07-27-2013, 05:48 PM
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Re: Front end knock. Please help.

Ok i will give that a shot.
Old 07-27-2013, 05:54 PM
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Re: Front end knock. Please help.

Here's a pic from a GM service manual showing the locations.

You can see that the #4 part are the bolts for the one side. The other side is the same.
Attached Thumbnails Front end knock.   Please help.-k-member.jpg  
Old 07-27-2013, 05:59 PM
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Re: Front end knock. Please help.

Here's a better pic but without the key:

Edit: Almost forgot, 120 ftlb torque specs.
Attached Thumbnails Front end knock.   Please help.-k-member.jpg  
Old 07-27-2013, 06:08 PM
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Re: Front end knock. Please help.

Kmember bolts good!
Old 07-27-2013, 06:14 PM
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Re: Front end knock. Please help.

So they were not loose?

If so, Then have you tried checking the whole from suspension? I mean everything from the idler arm, center leak, inner/outer tie rods, ball joints, everything.

Also, This may not even be your problem, but better to check anyways; you may have the common frame crack near the steering box. Here's two pic's:

Ignore the red circle on the first pic, that's circling the rag joint; Look to the top right of the circle, that's the frame crack I'm talking about.
Attached Thumbnails Front end knock.   Please help.-steeringcrack.png   Front end knock.   Please help.-stresscrack2.jpg  
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