I have the seat noise and I'm 175.

ATL_Runner, Do you have heated seats? I wonder if it's the connector for the heated seats?

Negative on the heated seats. I am due for an oil change so I will have the dealer take a peak while it is there.

As for the seat creak/pop issue and weight question I am 210. To update everyone on my experience with the lubricating the seat it has been 100% quiet for about a week not.

Mine pops all the time and I think the passenger side does too.

Oh well...it's a spring fix now...

260#, 55K miles, 2008 limited. Pop and creaking. I'm looking to sell this thing now. Pretty disappointed.

Marcados,

I finally actually fixed my seat! (well, it lasts for a few months and then I just have to do it again) I used white lithium grease as outlined in this post under section labeled "location #2" (red bar in seat diagram): I found/fixed my seat rattle/squeak

I attempted greasing too, but with little effect. On the second image in the post you supplied, where exactly are you applying grease? I applied some along the tracks, and at point where the seat moves mechanically.

On both corners of that red bar. I had to put the seat as far forward as it would go (both the seat bottom and seat back). Then I had to unstrap and pull up the leather from under the bottom of the seat. It was a tight squeeze, so i ended up using Qtips to apply the white lithium grease. Then I put the seat back as far as it would go back and got to the sides again from the front where the seat bottom meets the seat back. Then I made the seat back go full motion a few times to work the grease in.
It works for me for about 6 months and then I just have to do it again.

Roger that, I'll give it a go this weekend. Thanks.

First, I wanted to say I decided to join this forum after researching and solving several problems here. Now on to the issue.

Apparently, 4runner seats are notorious for a popping/creaking sound especially after a couple years of use. I first experienced the sound in my driver seat, which would happen during turns then starting and stopping. I ended up taking it to the dealer and having the entire frame replaced, which resolved the issue. I was fortunat to have an extended warranty with a $50 deductible that covered the $900 worth of labor and parts, but was hated not having a car for 3 days.

Recently I noticed my passenger seat started popping with every bump, turn, start, stop. I was able to narrow down the area to the bottem left hand side where the seat connected to the back rest, next to the center console. I could replicate the sound by gently tapping the back of the back rest from the back seat. Now on to the possible solution..

I removed the four star bolts securing the seat to the floor board, while leaving all the electrical components connected, I adjusted the back rest to the most forward and backward postion. Note; while lowering the back rest to the furthest back postion, the chair reclines almost flat. The bottom of the chair, where it is bolted to the floor, will lift up from the floor board. This reclined postion is not possible while still bolted, since the back seat will prevent it from reclining this far. During the reclining process the hinge of the back rest will pop and adjust where it is attached to the seat.

After moving the seat upright from the reclined postion, I removed it entirely from the car. I proceeded to tighten every star bolt and screw that were in view. The most important being the star bolts under the plastic side coverings where the seat and back rest meet. These can be distinguished from other screws, since they are the only other star bolts that are the same size as the star bolts that bolted the frame to the floor board. These bolts along with the star bolts underneath the seat tracks on the bottom of the chair (you must flip the chair upside down with the bottom facing you to see these) were noticeably loose.

After tightening all screws and replacing the seat; i have yet to hear any pop/creaks after 3 months, even with a passenger riding along. In short, I am not sure if the culprit was the tracks or the connection of the back rest to the seat, but the alignment of the back rest and tightening all screws seemed to do the trick. All in all the work took about an hour.

Hope this helps you fellow people suffering from OCD.

Thanks for the detail. Creaking/popping noise from my passenger seat is driving me up the walls.

How hard was it to loosen the bolts holding the seat to the floor?