jim1000

I have a 1999 4Runner V6 2WD with about 115,000 miles. Recently, I hear a rattling/clunky noise coming from the rear of the vehicle when I go over bumps, potholes, etc. Anytime I drive over a bumpy pavement, I hear this rattle that sounds as if I had a plastic box in the rear cargo area being tossed up and down. There is nothing in my cargo area, so it can't be noise from any item that I am carrying around. Any ideas on diagnosis?

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bwhyit

I have the same problem. Anyone else had the same?

ozziesironmanoffroad

i know i say this for a lot of CLUNKS, but how tight is your spare tire?

__________________
The 22r series engines are made from the fires of hell, and will fight tooth and nail to not be sent back.

1988 Toyota P/U 4x4
22re, 1200 miles on the rebuild
engine builder .268 cam
pioneer CD deck
31x10.50x15 BFG A/T
BAJA 100W lights on prerunner bumper
KC Daylighters 100W
rancho rs5000
MUD IS A VALID PAINT JOB!
If not living life to the fullest, why live it?



my trucks official buildup thread

bwhyit

It's not the spare. Doesn't sound that low pitched. I even removed it previously with no change.

misterzee

There's a cargo space in the right quarter panel, did you check real good in there?
Perhaps a possum crawled in there, and you're hearing bones rattling.

__________________
85, 87 (SAS), 88 (on loan), 96 4Runners, all males...
03 Town and Country... female
CLIK4PIX

ozziesironmanoffroad

__________________
The 22r series engines are made from the fires of hell, and will fight tooth and nail to not be sent back.

1988 Toyota P/U 4x4
22re, 1200 miles on the rebuild
engine builder .268 cam
pioneer CD deck
31x10.50x15 BFG A/T
BAJA 100W lights on prerunner bumper
KC Daylighters 100W
rancho rs5000
MUD IS A VALID PAINT JOB!
If not living life to the fullest, why live it?



my trucks official buildup thread

WCorbett

I have the same problem in my 91 4runner and its pissing me off.

86toysr5

my 86 did that in the front and it was the shock bushing gone

__________________
86 toyota sr5 with a 1980 20r*sold*
97 tacoma with 2.7 n 5sp-pos that hasnt run in 5months, new crank, main n rod bearing, a few new gaskets

2008 silver honda 600rr

WCorbett

^ I suppose that could be my problem because everything else about my shocks are shot.

Ron Helmuth

this might sound stupid but of course trying to diagnose a sound over the Internet is likely not the best way either, but here goes...

I was getting ready to install my new Coleman Safari Roof Rack basket and I had loosened up my factory roof rack to slide them around for roof cleaning at the car wash. I did that on a Friday then spent all day Friday and Saturday wondering what the racket was coming out the back end of my rig. I checked all the seats and backs and the seat belts and the lift gate and so on. Never once remembering that it was only me that had loosened up the roof rack. Sure enough once I got the new basket in place and tightened everything up my noises were gone. Also I removed the "ribs" within the factory track, as they are now covered up by the basket anyways.

Noise is a funny thing I sometimes swear I hear things backwards-like out of my right ear when the sound is to the left. I could have sworn the noise I was hearing was inside the vehicle but there was nothing inside to make the noise. Did I mention I am no spring chicken myself anymore? 46

So long story now short-

check your roof rack or any other outside the vehicle attachments.

__________________
99 4Runner SR5 4wd 3.4/5 spd-
Fact. Rr. Locker/Diff Breather Ext.
Old Man Emu lift springs- 881 fronts/890 rears
O/M/E shocks- N91s fr./N86 rr.
All Pro Off Road welded sliders-prevent body damage!
ARB"Taco"bumper/Gamiviti clear lenses/Hella 500s
Redline Tuning hood struts/Bushwacker Extend a Fenders

all my photos are over on Facebook now-I gave up on photo hosting sorry....

http://www.facebook.com/album.php?ai...5&l=5795132731

dirtoyboy

Did you try jacking the truck up and seeing what is making the noise? that might be a start! Most likely a bad bushing somewhere

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Low down and durrrrrrrty Rock stacking Web Wheeler.


Locked, lifted, trussed, SASsed, triangulated, dual cased, shaved, armored, gusseted, hydro'd, blacked out, crapped out, mashed up, merderrrrrd out and ready to hit the mall!

It's a Jaap thing....You wouldnt understand

WCorbett

Ya the rack would make sense other than I dont have one.

Wazioc

I had a rattling noise in the back when I would hit any sort of small bump, but it was definately metal on metal... ended up being one of the the bolts through the rear sway bar. I tightened it back up and no more rattle.... now I have one up front that sounds like a penny in a jar... cant figure out what it is...

__________________
'97 5-spd 4Runner Deck plate, Diff breather, ISR mod, OME 891/N86 rear, Tundra/Tokico blue front

SoCalPaul

If you pumped too much grease into the drive-shaft slip joint, it could keep the joint from compressing, but this would usually make a loud clunking noise in the drive line. Otherwise get a rubber mallet & start hitting things.

Check all your bushings, the shock tops are likely suspects. Shake them & see if they move. Also check your sway bars. If you start lubing rubber bushings, make sure your lube is rubber safe. Regular petroleum lubes could degrade the rubber bushings.

Paul

__________________
Gone, but not forgotten:
1996 4X4 4Runner LTD. Purchased used 5-08, 120K. Now has 265/75 16 Terra Grapplers, Performance Products springs, Bilsteins. Cupholder Mod.
2001 Tundra, V8, 4x4, Xtra cab, Limited, TRD Offroad. PP springs, Bilsteins, Snugtop shell. Owned 0-112k mi.
1992 4Runner, V6, 4x4, 5spd, SR5, PP springs, Bilsteins. Owned 0-219k mi.
1988 Pickup Xtra cab, I4, 4x4, 5spd, SR5, Ranchos, rear shackles, shell. Owned 0-122k mi.

904_runner

I don't agree with get a mallet and start hitting things, but other than that, everything else is very valid points!

The shock tops on mine kept breaking so that was my noise on my truck along with the swingout tire carrier.

__________________
Mike

1990 4runner: 3.4 swapped, 5-speed, sas'd, Rear leaf swap, Locked, 5.29's, 39.5" iroks on Beadlocks, Armor'd

Longfields, Duals coming soon:


My build thread
http://www.yotatech.com/f152/904_run...thread-158746/

http://www.treadlightly.org/

http://www.pirate4x4.com/tech/billav...ery/index.html

SoCalPaul

I did say a RUBBER mallet. I also assume that people would use common sense & not whack with all their strength, although I should have said carefully & gently hit things & listen for a rattle.

Paul

I almost forgot to mention the obvious: U-Joints. Twist them back & forth & check for play. Grease them.

__________________
Gone, but not forgotten:
1996 4X4 4Runner LTD. Purchased used 5-08, 120K. Now has 265/75 16 Terra Grapplers, Performance Products springs, Bilsteins. Cupholder Mod.
2001 Tundra, V8, 4x4, Xtra cab, Limited, TRD Offroad. PP springs, Bilsteins, Snugtop shell. Owned 0-112k mi.
1992 4Runner, V6, 4x4, 5spd, SR5, PP springs, Bilsteins. Owned 0-219k mi.
1988 Pickup Xtra cab, I4, 4x4, 5spd, SR5, Ranchos, rear shackles, shell. Owned 0-122k mi.

Runnin on Empty

hey Jim,

I had a rattle in the back end, took a while to track it down. I finally went onder there and started shaking the hell out of the spare tire then i could hear it. excellent bumpy road simulator.

Mine ended up being this metal strip inside one of the back frame rails (almost like a thin leaf spring kind of thing inside the frame chanel, anyone know what this is?). Anyway, jamed a block of styrofoam in there now its gone.

__________________
old rig - 98 Tacoma -> recalled
new rig - 99 4Runner SR5 V6

P-Lo

I'd just jack up the rear end, give it a good looksy and tighten every bolt I could see just to be sure. It shouldn't be a big surprise when things are not tight especially after you have any type of service done (i.e. tire change/balance/rotation). Those service guys don't always tighten everything.

T4L

Check your exhaust. Make sure all the hangers are still intact.

__________________
92 4Runner SR5 4x4 3.0 Auto, stock, 116,900 miles, 15-16 mpg avg., (fixer-upper) So far: New 1/2 shafts, new front shocks, new washer fluid pumps, new windshield, new idler arm, new pitman arm, new exhaust (cat-back), ISR mod, Xtra tailgate window switch mounted at rear dome light, 31/10.5/15 BFG AT KOs

4runner114

i had the same problem, mine was coming from my right rear shock boot cover thing

ote

Ditto the upper RR dust cover on OEM shocks. ((1998 4runner 4wd)) The weld has broken where the stud goes thru it and you can rotate it by hand. It's more or less noisy depending on how it may have rotated or shifted from time to time.

This noise developed very suddenly on a 15k road trip from Alaska thru the lower 48 and back and it drove me nuts for 2 years afterwards. 3 dealers looked for it while doing oil changes and never found it, altho one of them said I had an out of round RR brake drum that was making the noise on light braking... Not!

The dealer who finally found it on the last oil change on a different road trip last year wasn't even looking for it as I got tired of mentioning it and it never got any worse (turn the stereo up). The tech noticed it while doing a once over on things and rotating the tires.... go figger. It's still broke, still noisy, and the shock works fine at 165k (or as fine as OEM ever worked...)

badattitude

Old thread, but my two cents...

I quieted a similar rattle. It was coming from the rear seat latch that holds the seat up. The one next to the rear head rest. The latch didn't hold as tight as it used to. I wrapped some electrical tape around the fixed metal part to stop the rattle. Hope that makes sense. I don't feel like I explained it well.

__________________
1999 Black 4Runner
TRD exhaust
deckplate mod, TRD air filter, Airaid MIT
front discos

SuperSixOne

Hey Guys,

This is my first post here but i saw it was a fitting topic.

I have 2002 Sport 4runner, running completely stock which is making a scuffing/ pinging vibration when it hits 4000 RPM's. It doesnt happen all the time but its only when the needle hits 4000. Below or over that number everything is okay.

I am 99% sure its not the engine; i havent seen a loss of power and generally the noise sounds like it comes from behind me.

Any help would be appreciated. I plan on trying to get under her sat. and take a peak.

P.S - I forgot to mention she only has 57,000 miles on her.

Libratsio

Just bought my 4Runner a week ago - drover her home ~ 120 miles from point of purchase. Has M+S tires on it, bounces like a beast. 265/75R16 tires, generic brand from what I can tell. Also had a rattle in the rear, underneath. I drove it for a total of 220 miles or so.

I take a look - and the rear shock on the right side is totally separated/broken from the top mounting location. The upper portion of it had been beaten up pretty bad, and was rattling pretty bad as a consequence.....

My shopping list just got re-prioritized.....

I was thinking it was a heat shield, exhaust, spare, (something else) - wasn't expecting that....