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Old 05-14-2021, 07:01 PM #1
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TRD 4runner: This noise is driving me crazy

Can anyone help diagnose this problem? I made this video when the car had 200 miles on it. I have taken it to the dealer twice and each time they say the car is to spec and they can't hear the noise. It is driving me and my wife insane.

I did some research and it seems different that a lifter noise but maybe someone here on the forum can help? I am talking about this oscillating noise in the background.

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Old 05-14-2021, 07:13 PM #2
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It's your motor.


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Old 05-14-2021, 07:47 PM #3
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Sounds totally normal to me. Maybe go sit in another 4Runner with the engine running and see if it sounds the same?
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Old 05-14-2021, 08:05 PM #4
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Don’t worry, it’ll sound like that for another 20 years.
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Old 05-14-2021, 08:11 PM #5
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Not normal at all, it’s a lemon. I’ll start the bidding at $100
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Old 05-14-2021, 08:31 PM #6
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Not normal at all, it’s a lemon. I’ll start the bidding at $100
I bid $102.
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Old 05-14-2021, 08:53 PM #7
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P.S. You and your wife may want to work on your "drives me crazy" threshold, because 4Runners make a LOT of weird noises.
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Old 05-14-2021, 10:06 PM #8
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Quote:
Originally Posted by nimby View Post
It's your motor.


You're welcome.
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Old 05-14-2021, 11:01 PM #9
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Quote:
Originally Posted by leowiz View Post
Can anyone help diagnose this problem? I made this video when the car had 200 miles on it. I have taken it to the dealer twice and each time they say the car is to spec and they can't hear the noise. It is driving me and my wife insane.

I did some research and it seems different that a lifter noise but maybe someone here on the forum can help? I am talking about this oscillating noise in the background.

Shared album - Titus Leo - Google Photos

Thanks.
Unlike many other cars, Toyota uses a chain drive for the camshafts/valves instead of a timing belt. A whirring sound like this is normal. Chains last forever; you never will need to replace a timing belt.
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Old 05-15-2021, 01:47 AM #10
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Mine was making the same noise.

Your main fuse box is under the hood driver side. Open it up and find the flux capacitor. It has an adjustment screw, turn it to the left very slowly and you should notice a reduction in noise. Be sure to use a left handed screwdriver.
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Old 05-15-2021, 05:03 AM #11
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Quote:
Originally Posted by lewdog998 View Post
Mine was making the same noise.

Your main fuse box is under the hood driver side. Open it up and find the flux capacitor. It has an adjustment screw, turn it to the left very slowly and you should notice a reduction in noise. Be sure to use a left handed screwdriver.
Just don’t hit 88mph after the adjustment. Although, a 4Runner may never make it to 88mph.
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Old 05-15-2021, 06:57 AM #12
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Quote:
Originally Posted by fkheath View Post
Unlike many other cars, Toyota uses a chain drive for the camshafts/valves instead of a timing belt. A whirring sound like this is normal. Chains last forever; you never will need to replace a timing belt.

Honestly most modern cars use timing chains anymore. Timing belts are mostly a figment of the 90s/early 2000s


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Old 05-15-2021, 07:08 AM #13
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Completely normal. In time you will not even notice it.
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Old 05-15-2021, 08:39 AM #14
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Just don’t hit 88mph after the adjustment. Although, a 4Runner may never make it to 88mph.
You need to give it a little more gas ;)
120 is when mine hits the limiter.
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Old 05-15-2021, 09:57 AM #15
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Quote:
Originally Posted by fkheath View Post
Unlike many other cars, Toyota uses a chain drive for the camshafts/valves instead of a timing belt. A whirring sound like this is normal. Chains last forever; you never will need to replace a timing belt.
Not always. My 1992 Toyota pickup that I bought new, threw its timing chain at 49000 miles. Put me off Toyota’s for years.
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