CRAZIEST noise on this Porsche Macan! You won't believe what I find!

[@valengreymoon5623]

Soooo....they had a noise maker installed, then complained about the noise.

[@rickhayes8009]

😂

[@samholdsworth420]

Just rolled in.....

[@headcas620]

typical porsche idiot

[@valengreymoon5623]

LOL, that would be perfect for that channel.

[@valengreymoon5623]

"customer states car making noise after having noisemaker installed". Perfect for that channel.

[@jakobbecker6435]

So they installed the spacer, which the whole purpose of it is to make that blowoff sound, then complained when it did exactly what it was supposed to do…

[@wadeepperson6906]

I didn’t do a spacer because this exact reason. It sounds cool but isn’t worth some lag.

[@BCJDM]

@@wadeepperson6906 bro this wouldn't affect turbo lag. The sound is excess air being forced out, lag would occur before the turbo comes on

[@leenevin8451]

@@stigmata454makes more sense lol

[@sleepyvtek9]

imo i like the blow off sound. guess it isnt for everyone.

[@allworldmusic8270]

just the same as putting a hot dog muffler on your car, sounds like it is modified when it is not

[@unifairsum21]

Instantly knew it was the blow off valve once I heard the turbo flutter

[@GoldenCroc]

Yep, same here. Though I figured it had sprung a leak since the owner was surprised by the origins of the noise... I didnt account for the... "mechanical dyslexia".

[@AdamBrinson]

Same. I grew up playing and tuning with all the turbo cars in the early 90s. Supras, 3000GTs, RX-7s, 300Zs, this noise was common and very well known, even desired. Three minutes in the video I was confused why this was such a mystery! lol

[@michellemire8462]

What a mystery no one could ever guess that the first time it did the sound

[@buckdesystem4562]

@@michellemire8462 I was going to say the exact same things as you three guys. It's an instantly identifiable sound, and I know the Wizard, Grimes, and Daniel would have known this right away. It was done simply to add content, that's all.

[@mk177]

@@buckdesystem4562exactly dudes who would complain about the waste gate they got installed are all driving stock ‘84 camaros so

[@aaronbrown6266]

You're too kind Wizard. I totally blame the owner. It's right in the description of the product that says what it's intended to do. And, the fact that he installed it himself... I guess common sense just isn't so common.

[@MarkLRandall]

Idiot owner.

[@michelanvalo]

It's possible the tuner installed it to make it sound better. I'd be questioning the tuner's job.

[@angry_bananna]

@@michelanvalowizard tells us the customer actually installed it lol

[@johnbishop7912]

@@angry_bananna Yeah, that was probably the full extent of the alleged "Tuning" that had supposedly been done ... These idiots crack me up ! 😏

[@marcusvision]

Wizard: That'll be $150 bucks, cash or credit? 😂 It pays to be stupid.

[@GS-lh2nx]

Paid to put it on and now paying to take it off, that's got to hurt.

[@Gambit22003]

That's what happens when a person has more money than sense. 🙄

[@ProblemChild-xk7ix]

Being stupid is expensive!

[@f1e3r]

This has to be fake, but there's many dumb people in the world

[@tim3172]

Yeah, the guy with the $59,850 (with zero options) Porsche is crying himself to sleep and probably has to skip a few meals over this.

[@OsellaSquadraCorse]

​@@tim3172But most people finance cars, so... they're usually underwater on the loans in the first place!

[@chrisbennett812]

My first thought was there was a waste gate issue.

[@1HotLegendLS]

I thought exactly the same. I was thinking an unmodified/untuned vehicle

[@gregedmand9939]

Mine too. Waste gate was the first thing that came to my mind.

[@GuyChapman]

Yeah. Fake waste gate noise was my first thought.

[@thomasfrank280]

Vrooom, chu chu chu chu chu. A sound familiar to rally fans since the eighties or so.

[@varmastiko2908]

The problem is this thing has nothing to do with the waste gate. Waste gate is on the hot side (turbine side) of the turbo and is used to regulate boost pressure. Turbo bypass valve - also known as blowoff valve and dump valve - is on the cold side (compressor side) and is used to counter pressure surge on the compressor when throttle plate is closed. They are completely different things, and only the cold side valve has this characteristic sound. Wastegates only whistle like a kettle.

[@johnnypetro9314]

There has been a crew visiting cars in my neighborhood late at night helping with the first part of replacing your cat: removing the existing cat

[@mserica6487]

Actually talking to and listening to a customer for troubleshooting is actually one of the best things I've seen a mechanic do in a KZbin video... well done!

[@Sonny_McMacsson]

I hate that after giving a shop an exquisitely detailed description of a problem and how to reproduce it, the C/S line on the receipt just says something like "noise from left side of car".

[@Flies2FLL]

The point of a blow off valve is to keep the turbo spooled during shifts. When the throttle is closed, the boost air has nowhere to go, so it backs up against the throttle plate and the lack of forward movement causes the compressor wheel to stall, or churn air instead of move it. This slows the turbo very quickly. With a blow off valve, the boost air is simply vented to the atmosphere, so it continues to move and the turbo stays at high RPM, improving response after the shift. The device installed on this car simply makes the venting audible, since the automaker designed the blow valve to be silent. These actually work on non-turbo cars as well, but all they do is make a little noise. Great video!

[@galeng73]

I live in Maine. I'd say 50% of my mechanically inclined friends would have just smashed the core out of the catalytic converter and revved the engine up to blow out the chunks. Also, I was sort of right in that it sounded like a turbo exhausting.

[@groosbro1]

Blow off valve.

[@MrTilbin]

Outside of the environmental considerations, that also makes the car run worse and potentially be fatal to the owners. But you do you.

[@galeng73]

@@MrTilbin While probably not your intent, that gave me a good hearty chuckle. You may want to read the comment again. I'd never do such a thing.

[@HARRYAZZHOLE]

@@MrTilbinrun worse, only in the fact that now the engine might have SLIGHTLY less back pressure. But with the Oxygen censors still installed, the engine would still run factory.

[@BobBasshead]

@@galeng73 I think MrTibin is the guy on the stupid Progressive Insurance commercials, the old stuffy guy advising on how adults should act.... you get the point.

[@myang245]

That imitation turbo whistle was spot on.

[@AlessandroGenTLe]

1st thing I thought is "this sounds A LOT like a pop-of valve releasing pressure in the atmosfere". Like I was really used to hear back then with tuned Renault Supercinque turbo, Fiat Uno Turbo, Ford Fiesta Turbo, Lancia Delta integrale and so on :) Glad I was right :)

[@347DIESELMOBILE]

Hi, @ 8:07 Daniel son stated that the car has been tuned. Which most likely means air to fuel ratio has been increased as well as boost. The extra boost might need to be evacuated more so you do not have compression surge in the turbo. Removing the blow off valve part is possibly causing turbo damage due to compression surge. Not only do you have to remove that blow off valve part. But the customer might have to put the vehicle back to factory specs. Also adding a higher flow air filter on turbo vehicles will also most likely make that compression sound to some degree. Thank you for the hard work that goes into recording these videos and the content that you provide to the KZbin community.

[@ChrisPatrick-q6k]

Garbage, it will be fine without.

[@CrazyLegsFE]

@@ChrisPatrick-q6k @347 is absolutely right these cars literally monitor air mixtures at very high resolution and can absolutely be affected it can be fixed in the tune but the car has to know whether or not to "count" that air and adjust for it. This isn't an old 4g63 or rb that doesn't care as much.

[@Wpjgdmtu]

Recirc valve's job is to recirculate air so that the compressor doesn't surge. All the spacer does is make noise. Both with and without the spacer, the pressure is still diverted away from the compressor. So no this also would not affect the tune. When the valve is closed and you're under boost, the system works exactly the same.

[@Haxpatty]

Love these multiple choice guessing games Wizard. Please keep em' coming!

[@BCNeil]

After market BOVs. The worst mod you can make. No benefit other than noise. With the potential to reduce turbo performance in most cars.

[@Cogglesz]

New intro is fantastic, Feels a lot more quicker (big plus!) & relevant to modern day Wizard! Still won't forget the banging OG theme song though. I hope it still gets used for the occasional car lift segment!

[@cudaman-yq7pq]

Sounds like a turbo blow-off valve opening, the Mighty Car Mod guys love that sound!

[@Scoots1994]

I think it's a BOV NOT opening. That sounds like turbo surge.

[@ChrisPatrick-q6k]

I hate it, Chav Tastic

[@ChrisPatrick-q6k]

​@@Scoots1994They fixed it by removing that nonsense?

[@Scoots1994]

@@ChrisPatrick-q6k Yeah, the original design just piped the pressure back into the intake, the part someone put on vented it to the engine bay. The took the vent out.

[@MrTilbin]

It's not a stock sound, otherwise that's sound is an aftermarket sound.

[@metrocaptain]

A BOV was going to be my guess but it wasn't offered as a choice. My original guess was followed by failing turbo, followed by vacuum leak. Nice to know I was right the first time! I've had many turbo cars so I know the sound!

[@MM_in_Havasu]

Yep, as soon as you mentioned whistling noise on decel, no-brainer for it being the blowoff valve or something related. Great video!

[@1976Datsun]

You have to wonder if that was the extent of the "tune". He probably paid a few hundred dollars for what is essentially playing cards and clothes pins on the spokes of a bicycle wheel.

[@fubartotale3389]

I cant believe it, I am in no way a mechanic, but I have a good basic understanding of how cars work, and I actually nailed it, the turbo pop off valve.

[@logancarter2134]

Removing that part is going to affect the "tune" which is done through the computer. Did y'all reset the computer back to previous settings???

[@shamoo70]

Sounds to me like the customer tried to take you for a ride Wizard. You passed his test however. Well done!!

[@brayannexon4613]

Based on the fact that he got the car tuned and normies couldn't tell you what that is I suspect he was trying to catch the wizard and his techs off guard. Either way they realized what happened.

[@fabou3]

You employ several smart young men and believe you pay them well! Keep them on! As things get more complicated, they are more inclined to be able to spot and fix it! And I do very enjoy your vids as your wifes!!

[@franks5553]

I think we have a KZbin fan that just wanted his car featured on your channel. His car got its 15 minutes of fame.

[@kc9scott]

Possibly true, but the car owner’s actions were not a good look.

[@jsmith8255]

So cool watching you and Daniel ....like watching the Wizard and his apprentice 👍👍

[@rustycleaver8231]

The craziest noise I ever heard was on an 80 Mazda RX7. It was carbureted and the charcoal canister was mounted to the inside of the air cleaner lid and a rubber hose was attached to it through the top of the air cleaner. That hose was kinked. This caused a sound just like a rubber chicken being squeezed. It was super random and very hard to duplicate. Took some time to find it.

[@Gadget0343]

Sounds like compressor surge caused by the bypass or recirculation valve not working properly.

[@BigBundy82]

I have learned so much from you CarWizard .. Thank You.

[@bigdogg313]

I knew what it was as soon as I heard the noise it's a blow off valve for the turbo and it really similar to a gfb one.

[@Bertuslouw76]

The wizard showing us how NOT to use a grinder. No safety guard on the grinder, no safety glasses and no gloves.😂

[@organiccold]

Ohh, i like the new intro. And also the fact you heard us and you now filming the test drives 🎉

[@rockemsockemyall]

I knew it. First though was “it sounds like a blow off valve issue or mod from stock” The dos pipe xD MCM

[@cliffordcosta2221]

For someone who bashed Macans in a previous video you seemed to like this one. They score very high in Consumer Reports frequency of repair data. Ours has over 120k of trouble free miles.

[@robstephens]

I'd be afraid to run that cutoff wheel with no guard. I've had wheels to come apart in the past while cutting at 10,000 RPMs.

[@theundergroundlairofthesqu9261]

Guard for wheel, shield for face! (I also wear goggles under the shield.)

[@einfelder8262]

Was puzzled that the blowoff noise was present, since all turbo cars blow off internally. The adapter revealed the cause. Here in Australia such an external blowoff is illegal. I have a snorkel on my turbo diesel Nissan Patrol and you can hear the blowoff through that, even though the blowoff is internal.

[@gilgonzalez5902]

Great engine right here, im currently looking into a 2014 Panamera with this same twin turbo V6 which is the replacement for the V8 on the “S” cars. This engine makes over 400hp and is a small V6 so plenty of space in the engine compartment for me to work on it.

[@biggiefitz6275]

The second l heard it l knew it was a blow-off from the turbo. Sounded healthy to be honest but can get annoying to some people. 👍👍

[@dzelpwr]

My first thought on hearing the noise was "diverter valve has been replaced with a blow off valve going to atmosphere" Kind of right. Just was a spacer for the factory diverter valve that made it vent to atmo like a blow off valve instead of recirculating to the turbo inlet pipe, keeping it a closed system and quieter.

[@donedwards6414]

Really like the new intro.......Mrs . Wizard tooling around and you screwing around in you DS. You guys are terrific.

[@UpgradeUrWinRARTrial]

Loving that new intro, I see Mrs. Wizard is putting her free time post-retirement to good use

[@larsmanson9577]

if it's been tuned it might need that blow off plate to release the turbo pressure to prevent damage to the engine or turbo when you're on it hard and let off the gas pedal .

[@varmastiko2908]

It's for the sound only. The pressure is already released into the intake side of the compressor as stock and it does all that's needed.

[@Scotty_in_Ohio]

Honestly, while I've gotten used to the old intro - but the new one is better! Keep up the great work Mr. and Mrs. Wizard!

[@TheRealRenn]

My 996TT made a similar noise and it was the diverter valves. The Porsche part was very expensive, but a Mechanic over at Rennlist said they were the same part number as the one on the Audi TT at a fraction of the price....so we installed the Audi part and it worked fine

[@mr.carguy3161]

That blow off sound was so good, I had to go back and watch that part of the video again!

[@tristanpage6805]

Dump valve. Love that sound

[@maxxmich]

some people should not drive

[@shaft3285]

Because they’re not mechanically inclined?? You’re talking about 9 out of ten drivers….. then again, could you imagine the roads being empty? That would be great 👍

[@Dickusification]

Or more to the point they shouldn't own expensive cars

[@CheezeCracker]

Same people that put crossdrilled slotted rotors and track pads on their daily and feel convinced it'll make them stop much quicker, then complain of whining brakes a few days in.

[@flight2k5]

Maybe you should t drive?

[@twiki1963]

Some people should not drive such nice cars.

[@jeffdickens7019]

Great job wizard

[@rocketsurgeon11]

You didn't even have to drive it for me to know what the customer was complaining about. As soon as you said "turbo noise after letting off" I knew EXACTLY what it was.

[@bguerrero0410]

Boost Recirculating Valve. Usually becomes louder if an aftermarket intake is installed or the turbo is going bad and you have excessive compressor surge.

[@luisgpr1]

There are always tradeoffs when modding a car in factory form. Most mods will make the car actually worse, not better. Whether it will be noisier, harsher, use more fuel, etc. I learned this the hard way when I was young. It takes taste, money and expertise to mod a car in a way that comes off better than it was.

[@epicswirl]

They tuned it and paid for the valve? THEN they paid you to remove it???

[@paulodisano502]

Thank you Car wizard and Daniel Son for the great video. 🇨🇦🇺🇸👍

[@sammy60164]

The whole time I was yelling blow off valve but then you gave us options and I started second guessing myself lol

[@michellemire8462]

Same here im surprised that it could confuse a Car Wisard

[@wacholder5690]

No elusive error. Self-induced 'd say. Thanks for sharing !

[@ehsnils]

Vacuum leak or blow off valve venting would be my pick. The air filter is a telltale since it looks like an aftermarket filter and not an OEM. Seems like the blow off valve thing was pretty much it. Some people thinks it's cool with that noise, others won't care for it. It probably cost the customer $50 too.

[@JohnMaffa]

Sometimes you need to modify the diverter valve/BOV with a tune, if the tune adds more boost and if the stockvalve isn’t adequate it could cause further issues

[@houseofno]

Love the new intro! Thank you for the video!

[@nstg8]

The old one was better IMO

[@pops55650]

When I first heard the noise, I thought to myself “some people pay to have that noise” then I was like noo.. sure enough I was right.

[@varmastiko2908]

Before watching till the end: Clearly something to do with turbo bypass not working as it should. The sound is the turbo fluttering with pressure surge as the throttle body closes. There's a bypass valve that should release that pressure but it doesn't do it in this case. Vacuum leak could explain it however in many of these newer cars the bypass valve is actually electric so in that case not so much. edit. After seeing the result: I would not have thought the fault was caused by an actual aftermarket 'upgrade'. That black valve is the turbo bypass valve and as you can see it is electrically operated on this engine.

[@porscheDIY]

If the Macan is tuned, this is the diverter valves or waste gate valve. If you set the Multi-Function Display to show the boost pressure, you’ll see pressure building and dropping abruptly (together with the sound you are hearing) when you stop accelerating. It is my opinion that this is normal.

[@porscheDIY]

Never mind… I made this comment before watching the video completely…

[@1wadesdad]

Funny you mentioned how easy the ecm is to access. I’ve NEVER had a bad one in 50 years of car ownership with all varieties of cars.

[@kevinc7632]

I thought it’d have a performance filter or cold air intake as loud as it was at idle. Put a kn panel filter in some of those vag cars and you will hear diverter noise immediately.

[@johanankarback6821]

I guessed the blow off valve too. When the Audi/VW 1.8T engine came out they had a plastic blow off valve that broke after awhile and it then made a very similar noice. This was kind of funny that the customer installed the "fault" themselfs :)

[@jacobrzeszewski6527]

4:10 haven't seen the answers yet. My guess is malfunctioning intake bypass/recirculation valve. That sounds like turbo flutter. Cool on an aftermarket turbo setup, not much on a factory system. Maybe clogged tube or stuck valve. Edit: I was kinda wrong and kinda right. Didn't expect a ghetto blowoff. I can't throw stones though, I'm certainly not above putting a Focus RS air box lid on my Focus SE.

[@carltuckerson7718]

The sound almost sounds like something trying to start up with a specific cadence and sound. My bet is its the turbo after they were spun up and spinning free so to speak.

[@michaelmessaggi3615]

I thought it was a wastegate/blow off pipe loose, btw nice way to increase turbolag. as far as I know, the stock wastegate or blowoff should have something like a return pipe to reduce turbolag throwing the excess pressure when the gas pedal is released

[@mhk67091]

I have a 2023 Corolla GR it has 25.2 (stock) of turbo boost and the blowoff valve making a loud woosh sound it’s the pressure releasing between gears. It’s supposed to do that. It a performance car with a lot of turbo boost. That what a waste gate supposed to do.

[@panteleon1]

Wizzard to prevent clogging the cat we must warm the engine before we go the cause of the clog is unburned fuel and carbon deposits right? The operating temperature of the cat is 500-800°F and goes up to 1200 F

[@jeffboyer8214]

Turbo whistle Wastegate not working right. But sometimes this is normal depending on set up. Be safe.

[@mrtyreus0]

I've been there. Put a Forge 008 in fun turbo noise mode (stustustustu...pop) configuration on a 1.8t B5 Audi. Then immediately went on a road trip. Lost all boost, car was a complete dog. It was tuned to 15-17 psi with a stock valve. Went to 4 psi with my brilliant modification. As soon as I heard the sound, I knew exactly what the problem was.

[@volt101x]

That blow off valve flutter actually sounds amazing 😃

[@gueyg3764]

Install couple of harmonicas in the undercarriage, good subtle noise maker

[@ATICrossX]

Typtical Porsche owner lol. Gets the car "tuned" to make blow off valve and then complains it makes blow off sounds, classic

[@Dr650rob]

Put the drill bit extender on the drill and use a small hole saw a little over an inch and drill right thru the cat, I did that on a 10 mks ecoboost and it turned out the cats were new but were still throwing codes because you need the Ford cats to fix it so I put the dummy o2's in

[@timobloozer]

I work for a Porsche dealer driving service loaners and customers’ cars to/from the dealership. I’ve driven countless Macans. I love driving them. I’ve never driven one that made that noise. Did they buy this Macan not knowing it had that modification on it, and didn’t hear it on the test drive? Or did they buy it online?

[@marcconyard5024]

At my depot we had a Scania CNG powered gas bus that made exactly the same noise when you closed the throttle, only the noise was much loader than that made by this Porsche.

[@cyrusjalali1571]

Had macan gts, timing chain bolts sheered off and had massive oil leak. nightmare of untold magnitudes. Was within carmax's 30 day return policy. Returned it back via flat bed truck lol 😅

[@tony_25or6to4]

No fair. #5 should have been, "None of the above". I was thinking blow-off valve, but that wasn't a choice.

[@RunAboveIt]

I installed one of those on my 2016 smart car last year, it's a hoot. lol amusing video.

[@alitheretrokid]

But that noise was a good noise in my opinion : )

[@red95gts]

The only elusive thing here is what’s missing between the owner’s ears.

[@LudmilMetodiev]

3:20 sounds like blowoff valve not working and letting pressure go back through the turbo.

[@georgebettiol8338]

The noise is attributable to the classic 'aftermarket blow-off valve' - a valve that was installed by the 'youthful' turbo hot hatch owners of the 1990s and early 2000s. In these cases the owners loved to hear the 'whistle' when the car was decelerating - advising others that their car was turbo-charged. Gee Wow - enough said.

[@tkflanagan4449]

I LOVE Mr and Mrs WIZARD........... AWESOME People

[@kevinbarry71]

I recognize that sound immediately; having watched lots of races were turbocharged engines are used

[@themagicboy6548]

Kind of a trick question, knew without a doubt it was blowoff valve, I would have categorized that as turbo issues

[@JakeDrives1]

I definitely thought it was the turbo out of the list of options. The car seems so new I was baffled. I feel this customer just wanted a visit with the wizard 🤣🤷🏼‍♂️

[@MrBrianbusch]

Waste gate was my 1st thought upon hearing, dont own a turbo or ever had, I think Wizard playing koi.

[@juliuskwak1263]

lol, did the customer pay for some tuning package so it also sounds like a street racing car? Because the sound happens when acceleration is let go and the car is allowed to down shift on its own. Which infers the vehicle is preparing to stop, or bank a turn. And the sound is something common place for street racing cars because their tires would skid and hop to make those sharper turns.

[@Gozar111]

Put a playing card in my bicycle spokes. Made a weird noise. Took it for repairs. So much better now.

I think it sounds like a Plugged Blow off Valve. like an older Turbo car that doesn't have that. It's Cavitation when the air pressure stops hard and bounces on the throttle blades EDIT: After the thing was revealed, I think they must have installed it the wrong way. It should be a woosh, Not that tweeting sound. The valve probably didn't open probably

[@morph3ous75]

so basically customer paid another shop to tune the car to make more power and turbo noises then complains to you about said noises so you now detune it?

[@th3b0untyhunter]

No. That spacer emulates an atmospheric bov aka dump valve rather than the factory recirculation type. But all it adds is noise, so removing it is not a detune in any way

[@Tylerwherry]

They probably put in on so it releases air cuz the stock plastic bpv crack and break that peice had to be above 200$ so instead of a bpv which recirculates the air it had bov sound so the air is atmospheric instead of going back into the motor so it was tuned with that piece. The engine could lock up but it’s not my car.

[@manowaari]

Cool part, gives you that desirableTurbo noise!!!

[@1HotLegendLS]

At 3:37 and that sounds like compressor surge. I'd say wastegate stuck closed I was close, I was thinking unmodified lol

[@danielbrown4133]

Not suspension issue, 2: Not a transmission issue but the noise appears under load during gear changes which could be an exhaust issue. Watched video to the end, a blow off plate for heavens sake hahaha. Hot Vee engines, a lot of heat in the centre of the vee. Not a good idea in my view!! Honesty is the best policy Wizard👍👍.

[@jonswiftucf]

That intake induction sounds nice!

[@scottybrowndotca]

Reminds me of that time I lowered an old Mazda pickup truck and then I noticed it was a lot lower than stock Mazdas for the same year ..

[@legambaz]

One of the 'Not To buy' according to the Wizard. Very bad. Like VW Tiguan. I agree with him