Clunk from under driver side floorboard

[Panzerpatty]

I recently had an Icon stage 3 suspension installed(from a reputable offroad mechanic) with 285/70/17 Duratracs on a 2015 TEP I bought in June. Everything was fine for 2 weeks. This weekend I went to Naches in WA and did some very mild trails, didnt even get out of 2WD. On the drive home I noticed a clunk/rattle that sounds like it coming from under the gas pedal. I can't figure out a rhyme or reason to it, but bumps/potholes seem to exacerbate it.

My research has led me to either a bolt being out of place or a bushing going bad on the suspension. However I can't see anything wacky.

I'm a youtube mechanic and live in a apartment so I'm still learning how all this stuff works.

Where is the first place all y'all pros would look for this noise? Is there a 'problem' bolt or bushing on this year/lift? I'm hoping it's something easy.

Second question: Would I be out of line to expect the mechanic to sort this out? Or am I on the hook for aftermarket suspension work?

Thanks!:wow:

 

[Mistaken]

I would definitely have the mechanic who did the install take a look. Can't hurt.

 

[CruzadoBlanco]

it could be a loose upper control arm bolt or even the lower balljoint bracket. it may even be a cv joint but i doubt it (thats just my issue that i dont feel like doing right now). did you have the upper arms replaced? did you check all the nuts and bolts 100 miles after install?

 

[Panzerpatty]

Thanks for the reply. When I looked last night everything appeared to be intact. It's hard to tell if a bolt or nut is loose when there's so much weight resting on it. What should I have checked at 100 miles? The UCA was replaced with Icon tubulars.

it could be a loose upper control arm bolt or even the lower balljoint bracket. it may even be a cv joint but i doubt it (thats just my issue that i dont feel like doing right now). did you have the upper arms replaced? did you check all the nuts and bolts 100 miles after install?

 

[Antman]

Thanks for the reply. When I looked last night everything appeared to be intact. It's hard to tell if a bolt or nut is loose when there's so much weight resting on it. What should I have checked at 100 miles? The UCA was replaced with Icon tubulars.

Check the lower control arm bolts where the alignment tabs are. Chances are when the alignment was done they weren't tightened enough. These need to be TiGHT (130 ft lb). If you can turn them at all they are too loose and you will need to take it back to the tech and have a (free) alignment done.

Ask me how I know this, lol... Suspension clunk

 

[Panzerpatty]

Thanks Ant. I just ran downstairs and threw a wrench on them, Everything seems tight. Although I don't have a wrench that I can get to 130ftlb. We'll find out soon, the mechanic is having me come in asap, so hopefully I'll let y'all know whats going on tomorrow. If not I'll need someone to walk me through it :baby:

Check the lower control arm bolts where the alignment tabs are. Chances are when the alignment was done they weren't tightened enough. These need to be TiGHT (130 ft lb). If you can turn them at all they are too loose and you will need to take it back to the tech and have a (free) alignment done.

Ask me how I know this, lol... Suspension clunk

 

[Panzerpatty]

Took it to the mechanic that did the lift. He said that everything looked in place but he snugged everything up. Whatever he did, it worked because the noise is gone now. At least it was free!