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Lift Kit Discussion

Thumping Knocking noise over bumps


This is a discussion on Thumping Knocking noise over bumps within the Lift Kit Discussion forums, part of the Jeep Liberty - KJ (02 to 07) category!
Register to remove these ads. It's free! Hi All Well installed my new JBA upper balljoints and replaced the bushings ...

Discuss all the different types of lifts and which is right for you.


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Old 09-23-2017, 07:00 AM   #1 (permalink)
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Default Thumping Knocking noise over bumps


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Hi All

Well installed my new JBA upper balljoints and replaced the bushings love those balljoints made a big difference.
Bought some MOOG swaybar links and bushings also and was lazy so got a mechanic to install while at work. Now i get this thumping noise when going over bumps. From reading the forum these are suppose to be tightened up while the jeep is on the ground with full weight? If so what is the process, do you loosen the swaybar bushes first then do you loosen both nuts on the sway bar links, bounce the front end around then re-tighten.
Your input is important thanks
Mark
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Old 09-23-2017, 08:00 AM   #2 (permalink)
 
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Doesn't matter which order you tighten or loosen, just as long as it's done with the wheels on the ground.
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Old 09-23-2017, 09:30 PM   #3 (permalink)
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Thanks for your help I loosened the swaybar mounts and removed them as the Mech put grease on the inside so i cleaned them up. The drivers side swaybar link was loose thus the thumping noise. Went for a test drive and no more thumps. Is there anything you use to keep them tight or just keep an eye on them
(PS should have done myself)

cheers and thanks for your help from good old USA
Mark
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Last edited by MarkKJ Cherokee; 09-24-2017 at 04:55 PM.
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Old 11-12-2017, 04:55 AM   #4 (permalink)
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Hi guys,
Just got a OME shock and spring 2inch lift kit done but now the front end thumps like you would not believe. Took it back to the fitter and he said I need to do all the bushs in the front end. I'm a little sus about this, however I have had the car up on a jack and can't replicate the sound or feel.
Any ideas??
(Also from Australia. Could be a Downunder thing!)
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Old 11-12-2017, 08:14 PM   #5 (permalink)
 
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I would loosen all the bushing bolts (Clevis to LCA, anything sway bar related) and retorque them with the full weight of the Jeep on the ground. See what that gets you, I'm guessing that'll fix it.
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Old 11-12-2017, 08:59 PM   #6 (permalink)
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Yup. And really really tighten the both nuts on each end link. Use a cheater bar if you have to.
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Old 11-12-2017, 09:22 PM   #7 (permalink)
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Originally Posted by Aceofspades View Post
Yup. And really really tighten the both nuts on each end link. Use a cheater bar if you have to.
Hope you're joking with him
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Old 11-12-2017, 09:41 PM   #8 (permalink)
 
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IIRC the top nut is 100 ftlbs and the bottom is 80 ftlbs.
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Old 11-12-2017, 09:48 PM   #9 (permalink)
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lmao what someone else thought was "tight as I can get it" I was able to make 3 more turns by hand and eliminate my clunks that I had since august.
Even bought another set because hey the first set must've been defective right?
It's been a good laugh between my friends and I who regularly wrench on stuff around here
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Old 11-14-2017, 03:57 AM   #10 (permalink)
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So Guys just I've got it right.
Tighten everything in sight suspension/sway bar wise while the car is on the ground? Car has done 100klms (just did the timing belt $$$$) mainly soccer mum stuff so I was a little surprised when the mechanic said it was the bushes.
i'll let you know how I go
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