KJ front suspension knock.

[allen]

ADVICE PLEASE:
I have a knock / bang from the front left when going over a speed hump, or thru a depression in the road.
It was suggested that the lower control arm bushes are worn. Is it possible to replace them?
I am in South Africa. Cherokee 2.4 Sport - I believe to be a KJ?

 

[tombo_ontario]

A lot of the time clunks/groan/squeaks are from worn stabilizer bar links or bushings...may want to check those

 

[EvilSnipa]

I had the same noise sounded like someone hitting the tire well with a hammer when I went over a bump hard or dip in the road. I'm pretty sure mine was worn struts. I think they were bottoming out. After replacing the struts lower ball joints and tiered ends the noise is gone and rides so much better.

 

[HoosierJeeper]

Replace the sway bar bushings and end links, easiest things to start with and usually fixes it.

 

[Gary95]

My 2006 KJ was clunking and wobbly. I thought it was all front end. It turned out the rear was worse. There is a boomerang shaped stabilizing bar fixed to the top of the rear diff via a ball joint. The ball joint was stuffed and the 2 bushes where the bar connects to the body were shredded. I replaced the ball joint and replaced the bushes with "PolyTuff". The lower front A arm bushes where also replaced with "PolyTuff" bushes, as the originals were stuffed allowing the A arm to move around under breaking at cornering. I could not be happier with the new bushes and the price was good too.
Also check that the sway-bar drop links are very tight so the crush tubes can't move at all.

 

[Damotee]

My guess would be your struts (shock absorber). My previous vehicle (not a Jeep) had a blown shock and every time id hit a bump it would bang or knock. Replaced them and it was sweet again. Replace both the front struts, not just the faulty one.

 

[Majormc]

Hi Allen

I have a 3.7 doing the exact same thing. Did you solve your problem? I am in Joburg

Thanks

 

[Damotee]

Could be your wheel bearing.

 

[J33Pfan]

Replace the sway bar bushings and end links, easiest things to start with and usually fixes it.

or remove it all for a test drive

 

[flytonehundred]

or remove it all for a test drive

Shooting in some silicon spray can help to isolate it too...

 

[J33Pfan]

Shooting in some silicon spray can help to isolate it too...

nah metal to metal only get louder with lubrication!

 

[flytonehundred]

nah metal to metal only get louder with lubrication!

That's how I nailed down my sway bar bushing problem. Worked just fine. I've seen it recommended elsewhere as well.

 

[J33Pfan]

That's how I nailed down my sway bar bushing problem. Worked just fine. I've seen it recommended elsewhere as well.

IMO on a squeak yea, oil it -- but not on a bang