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post #1 of 14 (permalink) Old 07-13-2019, 11:35 PM Thread Starter
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"Clunk" sound?

Hey all,

I'm new here and apologize in advance if this topic has been posted many times before. I've had my 19' Tundra a little over 4 months now. The day after I brought it home, I noticed a peculiar "clunk" sound about a couple seconds or within 10 feet from putting the transmission in Drive. I brought this up to my dealers' Service department on each of my 2 service appointments. Each time I was told "It's a Toyota thing" and all Toyotas do it. Funny thing is, this is not my first truck, and I have driven other totyota vehicles in the past, but I don't recall hearing this sound ever before. Service department says its the "brake adjusters". So I have come here to ask, is this true, or is this BS? Replies are much appreciated.

Cheers

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post #2 of 14 (permalink) Old 07-14-2019, 01:25 AM
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I just bought a '19 and put 1k miles on it. I haven't noticed a clunk...


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post #3 of 14 (permalink) Old 07-14-2019, 06:38 AM
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Yes it is the abs system test. Does it every time after initial start at about 10 mph
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post #4 of 14 (permalink) Old 07-14-2019, 08:43 AM
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Could it be the doors locking at 14 mph?
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post #5 of 14 (permalink) Old 07-14-2019, 09:10 AM
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I have a 17 with 37,000 miles. The only clunk like sound I've ever heard was the doors locking.
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post #6 of 14 (permalink) Old 07-14-2019, 10:00 AM
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The driveshaft typically clunks on the tundra.
But when you put it in gear, not after already rolling.
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post #7 of 14 (permalink) Old 07-14-2019, 07:42 PM Thread Starter
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My description of the sound Im hearing might need to be better described. It's definitely not the door locks. It sounds more like 2 metallic objects engaging with each other, maybe the rear end or the drive shaft? I was also wondering if the sway bars (my TRD Sport has front and rear sway bars) may be loose? I can't seem to pinpoint the exact location it's coming from. But it definitely occurs after I put it in drive and rolling during the first 5-10 feet. It happens once and I don't hear it again until the next time I get in and drive it. I asked the Service Dept. to check all recalls and service bulletins. Only thing was the from sensor recall that was fixed while there. I may need to record an audio clip and attach it in my next post.

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post #8 of 14 (permalink) Old 07-15-2019, 08:43 PM
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I bought a new 2019 CC Tundra. Everytime I hit about 10 mph right after going into drive, I get the same sound. My daughter always thinks I’m farting into the seat. Haha. My 2012 did the same thing. Not an issue I don’t think. I like the previous post stating some kind of self test. Makes sense to me
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post #9 of 14 (permalink) Old 07-15-2019, 09:20 PM
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Quote:
Originally Posted by Nm6300'asl View Post
Yes it is the abs system test. Does it every time after initial start at about 10 mph
Pretty sure this is it. Mine has done it since day one.


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post #10 of 14 (permalink) Old 07-15-2019, 11:27 PM
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My '07 has done that since it was new. In my case, it's the auxiliary air pump in the smog system (up under the fender well on the right front) shutting off on the 4.7L engine.
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post #11 of 14 (permalink) Old 07-16-2019, 01:55 AM
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One clunk will happen around 14mph. It’s your ABS system check. No worries.

However if you’re like me it happens when you’re below those speeds and you happen to have the steering wheel turned. Especially pulling out of the driveway.

Im a retired aircraft so troubleshooting stuff like this is my specialty. That being said I could not find the problem. My ass was kicked until I ran across a thread here on the forum.

Skid plate flex is the problem. Rubber isolators (bushings) on your mounting bolts should fix the problem.

My 13 4x4 CM started doing this after I added aftermarket skids.
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post #12 of 14 (permalink) Old 07-16-2019, 01:57 AM
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Forum doesn’t work right correctly on my iPhone. I’m a retired aircraft mechanic not a retired aircraft lol!
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post #13 of 14 (permalink) Old 07-16-2019, 07:35 AM
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One more chiming in to say that mine does the same exact thing. Drove me nuts for a while. This is my third tundra since 2010, why am I just now noticing it? Oh well, once you hear / feel it, it’s hard to un-notice it.
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post #14 of 14 (permalink) Old 07-16-2019, 08:33 AM
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Quote:
Originally Posted by J.A.T.O. View Post
One clunk will happen around 14mph. Itís your ABS system check. No worries.

However if youíre like me it happens when youíre below those speeds and you happen to have the steering wheel turned. Especially pulling out of the driveway.

Im a retired aircraft so troubleshooting stuff like this is my specialty. That being said I could not find the problem. My ass was kicked until I ran across a thread here on the forum.

Skid plate flex is the problem. Rubber isolators (bushings) on your mounting bolts should fix the problem.

My 13 4x4 CM started doing this after I added aftermarket skids.
This could be why I don't hear it. I don't have TRD so no skid plate.
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