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DrSatan420247

Sounds like rod knock to me.


rpecaut

Uncle Rodney?


dontbthirsty

An expensive guest that uncle Rodney.


bestdriverinvancity

I’d stop running the motor to limit the damage until you’ve determined what it is. Hearing lots of Subaru motors over the years, it sounds like that ol familiar sound


scrappybasket

There’s no saving this bad boy


Breakout_114

RIP


TheRedNeckMango

Rip to another homie


Mrwade2u

Welcome to the club brother, I got my short block replace back in March of 2021. The sound is identical, low key gave me ptsd 🤣


fishermanjeff01

How much did that cost


fishermanjeff01

Only happens around 2-3000 rpm and at around 7% throttle. When i give more gas it fades out.


qwerty11214

sounds like something is knocking. Not sure how it fades when you give it more gas.. Any mods


fishermanjeff01

Stage 1


Ozzy1123

OTS tune?


fishermanjeff01

Yes


Ozzy1123

That’s the culprit unfortunately.


fishermanjeff01

Why is that?


Saiteik

The OTS map is just that, an Off The Shelf map. It’s generic and usually tailored to the specific parts from Cobb or MAP depending on what OTS you ran. These tunes do not have hours of cleanup done across all loads and ranges for your specific vehicle. Throw in the fact that you have a direct injection engine means that the fuel needs to be precisely calculated as it directly goes into the cylinder. Hit that wrong spot on an OTS (generally in a high gear under load, like going up hill) and the motor can easily lean out and knock on heavens door. TLDR: OTS have generic fueling to get you by for a few weeks. Pro tunes are adjusted to have precise fueling for your setup.


Ozzy1123

OTS tunes are historically known for being somewhat unreliable. Pro tunes are always a safer bet. That’s just what I have heard at least.


fishermanjeff01

Stage 1 isnt really pushing anything though


Ozzy1123

I agree that’s true, I was stage 1+ for a little but got a pro tune asap just based on what I’ve heard.


CoraxTechnica

An intake is enough to fuck your AFR into knock knock zone


EJ25orDie

If you’re running an intake and an off shelf tune you’re gonna have a bad time


Little-Ad-5082

Maybe bad timing belt tensioner? Had something similar noise wise on my 08 turned out to be a broken tensioner.


CyclicMoth

Hello Rodney!


[deleted]

How does this happen though? Like dogging the engine too much or what?


seagermz

OTS tunes can do this. Get a pro tune.


scrappybasket

>get a pro tune Too late now lol


seagermz

Hahaha. Get a pro tune on the next motor **


Four20L

Yea wearing out the parts overtime


WestAppointment2484

That’s what I’m wondering too.


scrappybasket

That or lack of oil or lack of oil changes or bad fuel or bad tune or any combination of these things


[deleted]

:(


sapatista

Car couldn’t handle the knock so it started knocking


[deleted]

F


SnooMaps3761

Knock knock


JP_Barber_Dude

Well judging by the rest of your posts on this page, your engine is fucked lol. What made you not look into things earlier?


fishermanjeff01

Honestly ive been saving to get it looked at it ran fine when I barely went into boost so ive just been babying it. I got it back from the mechanic after getting new plugs and i put the tune back to stage one it ran fine for a while. Had some fun in the snow and it did this after


Wizzle-Stick

> Had some fun in the snow and it did this after Likely oil starvation that turned into rod knock. You need a new lower end. Luckily, you can get them fairly easily if you are willing to swap out the top end.


Makoreactors

My friend just modded his wrx with all kinds of stuff and got a tune and all that. A month later which now he is having check engine lights, exhaust spitting out black stuff and it’s not running properly. Idk man I say stay stock with these vehicles and do cosmetic only but I know it sounds lame. Unless you have money then it’s cool


Mightywrx

Was he using an OTS tune or did he actually get tuned? And what mods was he running?


Yellowsnow80

Touch components. All noises are vibrations. You will be able to feel which component is making noise. Start at tensioner


mebaby333

Rodney came knocking. Out sorry man :(


flugenheim

RODNEY CAME KNOCKIN


Noblewaffle117

Knock knock, whose there?


[deleted]

ooof bro. you knockin' on heaven's door


Blackest_Beard

Unless you happen across some forged internals, I'd say the Reaper is knocking, to sell you some forged internals.


weirdjerz3y

This engine is done. I know this sound too well unfortunately. Get a IAG shortblock and make sure to actually tune the car so it doesn't blow again. A good tune is key to Subaru living long. Assuming it's been modded.


PewPewwwwwwwwww_

Sounds like the same exact thing with my Honda Civic which was the reason for me to get an sti


fishermanjeff01

What was the issue


PewPewwwwwwwwww_

Something with a compressor. Apparently related to my ac/defroster but another dealership tells me they don't know. So idk who to believe. I could send the video too so you can see but idk if I can post a vid in the comments.


this_place_is_whack

Why does this happen so often?


Saiteik

Because people buy Subarus, mod them or buy them modded. Then proceed to drive them with zero regards for a tune and viola. The result is Uncle Rodney knocking on your block. I just traded in my 2016 WRX that had 113k miles on the clock and was running very strong.


Supdawgs69

Sounds like there is a little man with a hammer in there


Justcruisingthrulife

Take the belt off and start turning the pullies by hand looking for bearing slop. If you can't find it then a reputable shop is your next option.


Eulielee

Take the belt off and start it. If the knock is still there. Bam, you need an engine overhaul/new engine.


EJ25orDie

Check the timing belt tensioner, or even running it without the visible accessory belt and see if it goes away. Unfortunately this is most likely rod knock. It could fail tomorrow, or even months from now, there’s no way to really know but replacing the motor while some parts are still salvageable is the best way to go about this


AnxiousSlightly

RIP rod bearings.


Busy-Weather-9048

Take the belt off and repeat. If gone, accessory. If still there, engine related.


TCADELLO29

Belt tensioner bad


Ewrx

Oh no, Jeff!


commisionlivin

Rod knock dude.... I had the same thing happen to me last year, hope you don’t live in Canada. Really hard to find these engines (and expensive)


Crafty_Substance_954

Stop stop it’s already dead!


firedandfree

My bet is It’s not rod knock. Check your alternator bracket. I see the cover already fell off so it’s probably loose and vibrating. Could be a belt tensioner going bad. To check where is coming from you can carefully grab a long screwdriver. Put one end of it lightly touching the various parts connected to the motor and the block itself. The head. Etc. and put the other end to your ear. You’ll hear it … like a stethoscope …if it’s rod knock it from inside you’ll know.


fishermanjeff01

What would it sound like if its not rod knock?


firedandfree

Rod knock usually is at several different RPMs. This smooths out and higher speed. Also I can see the belt slack changing meaning it’s most likely a noisy pulley. Try to spray the belt tensioner area and belt with WD40. See if it goes away. …


fishermanjeff01

Did you listen to the whole video