For the past little while I've been having a knocking come from my floorboard on the drivers side I could feel the tapping but not hear it most of the time.

I've looked a couple times to see what it could be and didn't see anything that looked odd. I was thinking a stick or something.

Here's what I found.



I don't have a solid final fix but I've pulled the wire back a bit and I'll do something more later. I think maybe cut the zip tie, re-bend the wire in the opposite direction and re-tie. See how that does.


I'll have to clean the jeep some first I kept getting dirt on my eye and that bothers me.

 

Man, I've been annoyed from the same thing you are describing ever since I put on the stubby front bumper. Knowing I changed the air flow around the front wheel, I thought I had traced it down to the inner fender being loose and occasionally knocking against the body. I will have to look for your culprit as I still have the knocking!

 

Same I've noticed it since I put on my bumper and it seems to have gotten worse as time went on. I've still not made any real change but just pulling it away I didn't hear it riding to town yesterday or to work this morning was the same no knocking.


I'll edit the first post with more pics on whatever I do.

 

where is the location of "this thing?"

 

Drivers side just behind the front wheel. I plan to look at this again this weekend but just pulling the wire away and twisting it a bit has stopped the knocking for a day or so at the time.

Don't burn yourself on the exhaust it's close.

 

I'll have to take a look at mine.....

I did have some wind caused knocking. And it was the inner fenders. I used a couple tubes of RTV sealant black of course. Put big goobs of it is 3 different places on the inner fender and frame. Where they come the closest.. It worked great and gave the inner fender much more stability..

Don''t forget to buy some plastic ririts and the puller just in case you rip some off....

 

That looks like an O2 sensor cable from the pictures. I have had the same knocking in both a '08 JKU and a '09 JK. I never really worried that it was anything too serious but that little thump under your foot gets a little annoying at times.

 

Yeah, I was just driving home one day and got agravated at it not worried and crowled under the jeep to look since it was dirty I could see the spot it was bumping to make the noise. I'm going back out to wash my jeep soon and will look at this after.

I spent the morning leveling dirt to poor some cement for my barn/shop I'm building in the back yard.

 

have the same problem -- driving me nuts. Need to check this out for sure....

D

 

Thanks for the tip,
It looks like the plastic covering the loop for the O2 sensor could eventually wear and cause a short/CEL. i'm going to look at mine later and tie it back or add some foam tape to the area.