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Old 06-16-2014, 05:52 PM   #15
Astroboy
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Originally Posted by nos145 View Post
So I've looked around not haven't found anything similar on our forums, therefore I decided to do a quick write up.

Car: 2013 FRS
Odometer reading: 2200 km
Transmission: Automatic
Issue:
Engine knock sound in the range of 2000-3000 RPM in 3rd/4th gears (loudest points) when engine is warm.
The AC was off at all times.
No check engine light at all.

This issue is most evident when the car is in DRIVE (i do not know why, but its not as pronounced when using paddle shifters) and it is in 3rd or 4th gear in the range of 2000-3000 RPM, most evident at 2500 RPM.

To replicate the issue I usually go onto a slightly sloped road and get the car to aforementioned gear/rpm ratio.

The noise is definitely a knocking sound. If i hold it in that gear/RPM it just keeps knocking away.

This issue first arose at about 700-1000 KM. I had just fueled up at Shell (93 octane) gas station and went on the road. It was so bad that I could hear it over music playing. At the time I thought it was a bad batch of gas. I drove for about 50km and after I got home and let the car sit for 10 minutes and started it again the sound wasn't there.

This happened again 2nd time at about 2000 KM. This time I had different fuel (costco 91 octane) and I've went about 450 km on the duel (was 3/4 empty). Therefore I figured that the fuel is not the issue.

I decided to take it to the dealer today and i managed to replicate the issue on a small scale (the knocking wasn't at it's loudest) but the mechanic agreed that there was an issue. They have ordered new high pressure fuel pump for me and will install it in a week.

On the drive back it started knocking pretty loud again.

It should be mentioned that I've had rough start issue as well about two times since I got the car.

I've found similar issue on Australian GT86 forums:

Here is the link to the thread if anyone is interested: gt86 aussi forums /forum/f16/engine-pinging-rattle-noise-under-acceleration-953/

So has anyone else here experienced this issue and does anyone know what the hell this is?
I highly doubt this is a fuel pump issue as I have 0 crickets under my hood, but from the part order I saw the dealership put in that's the excuse they used.
Did your car by any chance vibrate from the passenger side?

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Old 06-22-2014, 01:15 AM   #16
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Did your car by any chance vibrate from the passenger side?

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no vibrations sorry

vibrations are usually bad :O
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Old 06-26-2014, 05:18 PM   #17
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no vibrations sorry



vibrations are usually bad :O

Misfire maybe?


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Old 07-02-2014, 08:51 PM   #18
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Have the same issues and followed almost all types of fix but still popping.
I din the Seals, spark plug, coil pack, port injector, sensors etc... the only thing left is to change the DI but its too expensive for me.
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Old 06-30-2015, 03:15 PM   #19
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any resolve?
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Old 07-01-2015, 03:39 PM   #20
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any resolve?
Sort of: I bought a new GTI, but that's a whole other thing

Not really. It continued to do it, but it didn't seem to harm anything. I realize this is not really a good fix, but turning up the radio a bit seemed to at least help me not get irritated when it happened.

Good luck!

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Old 07-01-2015, 04:26 PM   #21
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Quote:
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Sort of: I bought a new GTI, but that's a whole other thing

Not really. It continued to do it, but it didn't seem to harm anything. I realize this is not really a good fix, but turning up the radio a bit seemed to at least help me not get irritated when it happened.

Good luck!

Brett
Lol..... Im thinking I got me some rod knock in my brz... its at the dealer now... @50k miles...no word back for 2 days... the torture
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Old 07-01-2015, 04:34 PM   #22
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Lol..... Im thinking I got me some rod knock in my brz... its at the dealer now... @50k miles...no word back for 2 days... the torture
Any mods?

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Old 07-01-2015, 04:45 PM   #23
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Any mods?

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Fumuto valve and a k&n drop in
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Old 07-01-2015, 05:25 PM   #24
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Fumuto valve and a k&n drop in
That's it D=

Are you sure it's not a motor mount?

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Old 07-01-2015, 05:36 PM   #25
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That's it D=

Are you sure it's not a motor mount?

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No not at all... but listening to the videos of other brzs and wrxs with that issue... it sounds alarmingly simular... I will post back what I hear. They said they should know more thursday...and yes... thays all my wife would let me get I was one of the first people to get an oem arm rest though
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Old 07-02-2015, 09:08 AM   #26
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They said it was the bottom end, and asked for the oil history which i have sent. and that is all i know so far....
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Old 07-02-2015, 09:29 AM   #27
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I had this same issue and my engine failed and oiled spilled out on my way to the dealership. Here is a video of what I found


Sorry this is the correct video
https://www.youtube.com/watch?v=jHUuQ-b-25E
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Old 07-02-2015, 10:51 AM   #28
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They said it was the bottom end, and asked for the oil history which i have sent. and that is all i know so far....

What oil were you using


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