Problem: Rattling in the front end

UT Hack

New member
I've had a rattling in the front of my runner for a while now, and recently I've been going through a checklist of things that could fix it and I've now hit a dead end. It happens most noticeably when I hit a section of small bumps in rapid succession, like over a street that's really worn down and has had the cracks fixed many times, or over a rough gravel area on a trail.

Yes, I searched this forum and others, along with a google search that has turned up no results other than those things listed below.

Things I've already changed/checked:
1. Front sway bar/end link bushings - brand new
2. steering rack bushings - brand new poly bushings
3. tie rods and ball joints are good - had the alignment place check them after I lifted it and got an alignment, they fixed one inner tie rod and now I'm good.
4. Just put OME suspension kit in from Cruiser Outfitters, double and triple checked all the bolts that were touched during install after test run last weekend.
5. not a rattle in the exhaust, I checked that because I heard of another member having that problem but that wasn't the issue.

The only thing that I have any kind of idea of what it could be is the anti-rattle springs in the front rotors are missing, because it doesn't sound like the rattle is in one side or the other because I can hear it from both sides of the truck.

I've tried to recreate the noise by moving and hitting everything that moves with the suspension with a mallet underneath, and I have been unsuccessful.

So I turn to you, and ask if you all have any ideas as to what this could be.
 
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I've had a rattling in the front of my runner for a while now, and recently I've been going through a checklist of things that could fix it and I've now hit a dead end. It happens most noticeably when I hit a section of small bumps in rapid succession, like over a street that's really worn down and has had the cracks fixed many times, or over a rough gravel area on a trail.

Yes, I searched this forum and others, along with a google search that has turned up no results other than those things listed below.

Things I've already changed/checked:
1. Front sway bar/end link bushings - brand new
2. steering rack bushings - brand new poly bushings
3. tie rods and ball joints are good - had the alignment place check them after I lifted it and got an alignment, they fixed one inner tie rod and now I'm good.
4. Just put OME suspension kit in from Cruiser Outfitters, double and triple checked all the bolts that were touched during install after test run last weekend.
5. not a rattle in the exhaust, I checked that because I heard of another member having that problem but that wasn't the issue.

The only thing that I have any kind of idea of what it could be is the anti-rattle springs in the front rotors are missing, because it doesn't sound like the rattle is in one side or the other because I can hear it from both sides of the truck.

I've tried to recreate the noise by moving and hitting everything that moves with the suspension with a mallet underneath, and I have been unsuccessful.

So I turn to you, and ask if you all have any ideas as to what this could be.

Have you checked your engine & transmission mounts?
 
My truck rattles on rough/dirt roads. I'm pretty convinced it's just the factory skid plates. I'm going to put some rubber shims in when I change the oil, especially where the two plates join. I put in a diff drop and the plates don't match up like they did before.
 
My rig just started to rattle in the front during yesterday's trail ride, as you say it only happens on bumps in quick succession. Interesting brakes were mentioned, did the 199 tundra brakes two weeks ago. If you find out what it is let us know, it's buggin the hell outa me.
 
Have you checked your engine & transmission mounts?

I haven't checked the motor mounts but it doesn't feel substantial enough to be something like that. However, if I don't find out something soon I will be forced to check it because I started with the least important and working my way towards the more major parts.
 
My rig just started to rattle in the front during yesterday's trail ride, as you say it only happens on bumps in quick succession. Interesting brakes were mentioned, did the 199 tundra brakes two weeks ago. If you find out what it is let us know, it's buggin the hell outa me.

I'll do that for sure - I'm going to go down to toyota tomorrow and see if they have a diagram of the calipers so I can compare and see if I'm missing any hardware. I'm forcing myself to believe right now that that's going to fix it because if it's not I'm truly out of ideas and not too keen on taking it into a shop just to find a rattling noise that could be some stupid little thing and end up doing a job on my wallet.
 
Probably not your issue, but the 2012 Hilux I have here in Afghanistan was rattling like crazy for the past 3 months or so. I took it in for service, twice, and they found nothing... (Typical)

Anyway, it really bugged me, so on a down day I decided to look into it myself.

The little cap that covers the nut for the front hub assembly thing (behind the centercap of the wheel) was not connected. It was just sitting inside the centercap. Picked up a nearby rock, bashed it on there, good as new.

Hope your fix is as easy as mine was!

The cap thing I am referencing is the black cover in this photo (yes I realize it's not on a 4Runner).
BCA_512208_FRO.jpg
 
Probably not your issue, but the 2012 Hilux I have here in Afghanistan was rattling like crazy for the past 3 months or so. I took it in for service, twice, and they found nothing... (Typical)

Anyway, it really bugged me, so on a down day I decided to look into it myself.

The little cap that covers the nut for the front hub assembly thing (behind the centercap of the wheel) was not connected. It was just sitting inside the centercap. Picked up a nearby rock, bashed it on there, good as new.

Hope your fix is as easy as mine was!

The cap thing I am referencing is the black cover in this photo (yes I realize it's not on a 4Runner).
BCA_512208_FRO.jpg

Damn I'm jealous of the hilux! that's awesome! I'll have to check that out in the morning really quick... I'm hoping you're right. At this point I'm willing to try anything so hopefully this is gonna work like it did for you.
 

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