Something's "clunking" under the jeep! Update post 15
For as long as I've had my jeep (only been 3 or so months now), I've had this clunking or banging noise under the jeep, usually happens when I back up and then stop, but I guess it also happens when I'm just driving and then slow down or stop. At first I thought it was normal, maybe do to having a lift or something (don't know a whole lot about Jeeps).. Anyways, to better describe what it does here's an example..
Backing out of driveway and when I use the brakes, something underneath moves and bangs up against the floorboard. I can't tell if its drivers or passengers side, but it's fairly loud. It's like something down there is suspended, but not bolted down, so as I take off or stop, it is swinging around. I'm sure somebody knows what this is! Help me out! thanks
Mine would do the same as the OP. It was the Transmission mounts. Funny enough, I just recently heard an exhaust rattle as well, looked around under there, and found one of my hangars had come out. The rubber bushing inside the rear hangar mount was bad. My local muffler shop had a bushing that worked and $10 later, they had it installed and hung properly.
Welcome to the wonderful world of YJs.. you'll soon learn how to listen, feel, and smell your way into vehicle diagnostics.
well I got under my jeep and apparently I don't even have the transmission mount. I could be wrong, but I was checking out the skid plate and there is only one bolt going through the plate (not counting the 6 holding it up) and i thinik it is the " torque arm stud" from looking at the FAQ section. So, no other bolts coming through would equal no transmount? or a broken one? I'm going to try to get to it this weekend if I can find a part local, otherwise Ill order it and do it when I can.
Here is a pic of my skid plate. If your missing the two 'trans mount' bolts, that would be bad. When you look at the part, they are actually studs that protrude from the rubber. They could have been over torqued and maybe pulled out of the bottom. Oh well, easy enough fix.
I went out and bought a new trans mount and installed it this weekend.. Unfortunately, I DID have a trans mount, but for some reason mine looks a little different then in the pictures. The two trans mount bolts don't stick out as far as in this picture, they are almost flush with the skid plate. The area of the skid plate that the bolts go through is like recessed a little, so that's why the bolts don't stick out past the skid plate. Anyways, like I said, I did have a mount already, but I still went and changed it since it looked old and was only a 20$ part. Problem not fixed though. It's hard to tell, but this morning I thought the banging noise came from passenger side in the back.. Maybe it is my exhaust moving around, but I pushed on it and couldn't really tell if it would move or not when I was driving.