Then I think its time to ghost ride the whip as the kids say these days.

Yes or put it in 4Lo, 1st gear, and have a friend drive while you slide along on your creeper.

Just don't get run over.

..+1

I've got the same rattle described. Haven't been able to pin point where it's coming from since it only happens while moving. I figured it was an exhaust leak. I'll have to check the cat. Thanks guys!

I found one of the rattles coming from underneath by putting it in drive, and setting up the ebrake. I crawled underneath and there is some kind of steel bump stop mounted to the tranny with a rubber bushing. It's a steel block around 3x5x2 inches thick. That thing was part of it. I cut it off, and there is still a strange buzz coming from someplace, but most of it is gone.

Over the weekend I found the metal on metal rattling noise that has been making me crazy for months.

I happened to park facing up on a fairly steep driveway and while jumping out of the truck I heard the noise. I gave the truck a good shake and sure enough - there it was. So I took the opportunity to roll under the truck and had my buddy shake the truck side to side and located the source.

On level ground there must be enough pressure on the rear swaybar to keep the end link bushings in contact with the mount - which is why in the past I have been unable to reproduce the noise. While parked "uphill" it took the pressure off the rear swaybar and the endlink (old, hard, cracking) bushings and the endlink clanged around on both sides.

I didn't have the time to run to the store to buy new bushings and I was unable to tighten as the treads were bottomed out - so I added a couple washers for now and that will hold me until the weekend when I can get in there and make the proper repair.

*additional info* Through all this I also had a bad muffler making it all the more difficult to track down this issue. Today's drive to work was like driving a different 4Runner !


@the kid , @seabun , @TRDFerguson , @rideexileex , @MONTYMTB , @sn0wrunner , @T4RunnerSteve , @jsukey , @BrianSD_42 , @kammando808 , @98OzarksRunner

This sounds like what I just fixed for 29¢. Look at your forward catalytic converter and check that all four bolts are present and tight. Mine was missing one and every time I accelerated it drove me bonkers. A stainless bolt, nut and a few washers was all it took (common sense says wait until it's cool to work on it).

My muffler is old and radles because it's rusted.

Ahh mine is still present and any attempt to locate it has been unsuccessful thus far, but I haven't gotten under it while it was running. Suppose I will try the ebrake method despite it making me a bit nervous. The rattle is slowly driving me mad...

I had a similar problem in my Toyota 86, I believe it was around the time I removed a 3" lift kit and went back to stock height. I had the problem go away and come back for about 5 months before I finally found out it was my Rear U-joint that would squeak occasionally when accelerating and sometimes when I was not giving it gas as well. Usually you can give your drive-line a good tug near the front or back by the u-joints if it gives then you might want to get it replaced 15$. drive-line shops will pop in your new one if you bring it in for free if you buy it there usually. if it doesn't budge try giving it some grease maybe that will help, it definitely wont hurt.

Any update on this thread? I've got the same rattle that goes away above 2000rpm and can see where parts of the heat shield are loose. However, I had an aftermarket cat installed in December 2012. I'm thinking its one of those two.

I'm with ya. I have a rattle when accelerating and its driving me nuts. If I'm rolling, and throw it in neutral then punch the gas, no noise. But when I put it back in drive I can hear it.

I got under and banged around on stuff, couldn't find anything that moved. The owner before me had the cat stolen and replaced it with an aftermarket one. That'll be 4 years in October, so I'm guessing it may be on its way out.

I need to replace sway bar links and bushings. I'll do this first and see if the noise is still there. If so, it'll most likely be the cat.

So far I've changed spark plug wires and put Shell 89 in the tank. The old ones were pretty crummy and didn't even have a brand name or year of manufacture. Swapped in some new Sumitomo OEM wires from the stealership and off I go.

So far no rattle on my morning commute but I wasn't objectively listening for it. I'll listen more on the way home. Does higher octane fuel eventually clean out the residue and carbon from lower quality gas?

Same problem, replaced the muffler and took out the resonator. Sound didn't change and is still there.

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I know this is an old thread. I have searched many threads on here, none of which detail exactly what I am dealing with, so I will give it a shot:

2001 4runner Limited, 78000 miles.
I have developed an intermittent tapping/ticking sound at around 2000rpms, then gone, and back at 3000rpms. The noise is not always there. Some days bad, like today, and other days no noise at all. The noise speeds up as rpms increase. The noise sounds like it is coming from behind the glove box. I am thinking exhaust leak, but I took it to an exhaust shop and they said there was no indication of a leak. All of my exhaust seems to be tight, no heat shields loose or anything like that. If it is an exhaust leak, it would be consistent, not just intermittent and noticeable at certain rpms?
Thanks for any help.