My wife recently complained of a thumping feeling under her left foot while driving her 02 Sport. I took it to work myself a couple of days and was able to reproduce it, more often when accelerating AND turning left.. such as a left turn from a stop. It actually feels like something semi-heavy is rolling around and then smacking something structural. Have not been able to reproduce it turning right - usually left and on rare occasion going straight.

Anyone have an idea what may cause this?

Welcome to the KJ forums!

Have you looked under the vehicle yet? The left foot area just behind the driver side wheel well, IIRC.
How is the handling? Any unusual wobbling, or just the hitting sound?
Has the F23 recall (lower ball joints) service been performed?

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2003 Liberty Sport
Bright Silver Metallic
Daystar lift
General Tire Grabber AT2 245/70R16

As for any recalls we bought it about 4 mos ago so I'm not sure but it's certified pre-owned from a local Jeep dealer so should be able to check on it. With her sitting in it and her foot where she feels it I did look under and saw nothing but floor pan at THAT point, however I understand the issue can actually be some distance from there and carrying through the floor pan. It handles very well, impressively agile I would say. But I drive a 5000 lb full size truck so most things are "impressively agile" to me

I will attempt to follow up on the recall issue this morning with my dealer and in the meantime I appreciate the input, and any future contributions as well. I'm in no position to give the dealer a blank check and say "let me know how it turns out."

As VideoGuy said, lower ball-joints would be the first culprit. My girlfriend has a similar issue with her Trailblazer, it's almost like a "pop" when accelerating from a stop and turning left at the same time. It's her driver's side CV joint.

Go to:

http://www.jeep.com/webselfservice/jeep ... ame=recall


You will need the last 8 letters/numbers from your VIN. Enter them into the box and you can check your recall info yourself.


N

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The beauty of a 4x4 is that you can get stuck at inaccessible places
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2003 Liberty Sport
Blue w/ Gray trim
3.7L 5 Speed Manual
235/70/16 BFG MT's
65w Phillips fog light mod
AmsOil fluids end to end
SkidRow Front armor
Standard Frankenlift I & Al's U A-arms

Great input and thanks for the link. She is at work with it now but will certainly do that this evening and will carefully inspect the CV and LBJ. Very much appreciated.

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2002 Liberty Sport 4x4
3.7l/Auto
Steel Blue

You also may think about the front drive shaft thats right under the driver if you don't find anything with the ball joints.

Ron

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2002 Silver Sport 4x4 3.7L-5 Speed NV3550 Manual Transmission-NV231J TC-Frankenlift-AllJ Interior Rack-ARB Bumper-Hella Driving Lights-Electric Trailer Brake-Moog LBJs-JBA 4.5 UCAs-Detroit Trutrac (Front)-245/70/16 Dueler A/T Tires-Amsoil EaA201 Air Filter-Tom Woods Custom Front Drive Shaft-Rock Lizard Gecko HD Roof Rails-Onboard Co2

if your jeep is lifted check this...the outside tire rod ends...mine go out alot...check your rack and pinon also...i had the same noise

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03 BLK KJ
custom 3.5'' lift w/ 265/75/16 Mud Kings
smittybuilt roof rack w/ 4 rally lights
front reciever hitch
k&n air filter
flowmaster cat back 40 exhaust
als upper a-arms
1.5"wheel spacers for stock alloy rims
alot of fender triming