Tech Tips: Intake Air Tubes

[@BigDog50001]

The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive Disclosure: This channel earns a small commission using some of these links - at no additional cost to you.

[@myyoutubechannel3161]

Tranks big dog. Could this issue throw a code for p0420? Mine has a big ass crack just like yours. .

[@darinbarfield8738]

👍 Yep… I just discovered a cracked-split air intake hose on my wife’s 2013 Nissan Pathfinder, We just replaced the transmission & the suv has been running like crap since… Wife described it over revving - then no power. Sadly, we’ve had it into a local reputable mechanic shop a few times, and he’s replaced the map sensor, then later the map sensor wiring. Frustrated & afraid to get stranded, Wife has been Truck my old truck last couple weeks… So I finally decided to take a look at it myself today. I’m no mechanic; but I work on my trucks & do many mechanically inclined projects, But generally try to avoid the foreign cars as I’m unfamiliar with them. So this morning I dissembled the covers, air box, air filter, cleaning as I go… begin to examine every hose visually & running my hand around them with engine running - looking and listening for a vacuum leak, As the car threw 3-4 codes, 3 of which indicates a vacuum leak, Anyway sure enough the under side of the hose- boot had a split 3-4” wide. Hoping this will fix the issues when I pick up the new hose tomorrow.

[@humblerojo6300]

In case anyone is curious, on Honda Pilot, after recently changing my air filter, a badly split intake hose (after MAF, before MAP) forced a rich condition which began wasting fuel. 15-16mpg instead of 19 and my oxygen sensors began coding because the cats couldn’t deal with the excess fuel. Anyways, as expected, after replacing the hose I immediately got a high MAP voltage code because the car was suddenly starving for air that it had gotten used to getting. The computer just took some time idling and driving to relearn the new optimal ratios.

[@humblerojo6300]

@@Kmssvx111 Disconnecting battery should have reset it. It does on 2013 Pilots and then takes awhile for it to relearn. You may have moved the throttle body position sensor and screwed up it’s position. In that case I think you do need help resetting it

[@sethduffey9538]

Excellent sir. Mine was cracked as well 🤣. Accord 4cyl 2003 got replacement from salvage yard 👍

[@BigDog50001]

👍

[@JaRa911]

Did it have stalling issues before and were they solved?

[@sethduffey9538]

@@JaRa911 not that but very poor idling and slow acceleration.

[@arthurfricchione8119]

Dave all your videos are good. Wife has a 99 accord 3.0. Checked it not long ago when I changed the front engine mount but think I'll check it tomorrow and order and replace it just for the age of the vehicle. It's always garaged with 60000 miles try to keep it like new. Hope all is good with you and family Artie 👍👍👍

[@BigDog50001]

I appreciate the comment Artie, thank you!

[@wyattoneable]

I enjoy that you share your experience.

[@BigDog50001]

I appreciate the comment Wyatt, thanks!

[@BigDog50001]

Be sure to subscribe for more tool and car repair videos! kzbin.info twitter.com/BigDog50001 instagram.com/bigdog50001/ Disclosure: This channel earns a small commission using some of these links - at no additional cost to you. The Big Dog 50001 Automotive Channel Store can be found here: www.amazon.com/shop/bigdog50001automotive Want a free Big Dog50001 sticker? Send an email to [e-mail] requesting a sticker. Sorry, no international addresses or automotive questions.

[@radicalrenegade8528]

Hmmm.......You're looking relaxed there Big Dog! I wonder why that is? Good tip. I've always known to be careful when I change out the air filter but I didn't know why. Ta-Dah! Now, I do.

[@BigDog50001]

It's so relaxing working in the shop! Thanks for the comment!

[@getatme8195]

I've been searching for this greatly detailed answer.

[@AntonioClaudioMichael]

Good quick tip showing the dirty rog air 👌

[@BigDog50001]

Thanks Antonio!

[@landshass2849]

A chain shop franchise cracked mine during a starter replacement. I didn't know till months later when I was replacing my air filter. It was a 2006 Honda Accord 4 cylinder, the starter buried under the plenum which is attached to the throttle body and this air tunnel/tube. When my other identical Honda needed a starter, I replaced it myself. Never trust a fancy sign of a chain shop, they're magnet for underqualified mechanics.

[@BigDog50001]

That can definitely happen during a starter replacement on those, thanks for the input!

[@x-train]

I took my Nissan sentra in to the dealership today and this is what they spotted right away. Getting it replaced

[@qvs787]

Thanks for this. I went to look at my car and my hose had a hole as well. I just recently got a newer engine and I guess that hose wasn't changed.

[@BigDog50001]

👍

[@Glenn_123]

Always a great video.... Replacement mine on my 2004 Accord a few months back. Keep up the good work.

[@BigDog50001]

Thanks! 👍

[@JaRa911]

Did it stall at all before you changed it?

[@Glenn_123]

@@JaRa911 Nope....was just ripped really bad. It actually ran fine. If I never saw it I would have never known. I do think it could cause some stalling if to much air is leaked in and with a dirty throttle body. Sounds like it could be possible.

[@JaRa911]

@@Glenn_123 my ‘04 Honda Pilot is randomly stalling(not very often) and I opened up the intake and I was expecting a dirty throttle body but all I found was a tear in the intake tube gonna hit up pick n pull to replace it

[@Glenn_123]

@@JaRa911 So, I imagine it may help just obviously, can not say 100%. So my accord was split bad and made no difference at all. I was shocked. If you do not mind please let me know if that fixes yours. If it doesn't I would imagine maybe a vacuum leak somewhere could cause it but would also think you would ha e an engine light on.

[@richardmorse8408]

Great tip. Going to check mine later today. Thanks!

[@BigDog50001]

👍 thanks!

[@juangutierrez4501]

Very knowledgeable video. Any idea on how to repair a broken air duct.

[@chekelley6861]

It only shows up on a MAP engine if the leak is after the throttle plate. Great video!

[@BigDog50001]

One thing I have learned is to never say "only"! ;)

[@chekelley6861]

Big Dog50001 Automotive Ok lol. GENERALLY a vacuum leak has to be after the throttle plate on a naturally aspirated MAP engine in order to cause any kind of code or idle issues 😜

[@meekmills1099]

Dude 👍🏽. Thank you

[@patrickjones9381]

Bless up big dog

[@BigDog50001]

Thanks!

[@dareldiass9958]

Yes this exactly happened to my Honda pilot 2015 but the bad thing is I checked when my engine motor going out for this small crack and I have to change the whole engine

[@TheDisgruntledMechanic]

Good tip and video Dave.

[@BigDog50001]

Thanks Mike!

[@iloveap83]

Hey big dog. I cleaned my throttle body on my 8th gen civic. Ever since the idle surges after a few seconds on start up and the idle rpm is about 1100 until engine reaches operating temperature and then it goes to about 700

[@BigDog50001]

Usually an idle relearn procedure needs to be done after working on the throttle body. Typically that involves letting it idle for at least 5 minutes with no electrical loads after it has gotten to operating temperature. On that generation Civic, the PCM needs to be reset with a scan tool in order to do the idle relearn.

[@iloveap83]

@@BigDog50001 hey big dog. I've tried re teaching it several times. Do you know what the charge would be at a dealership roughly? I have a blue driver scan tool but it's not bidirectional. Thanks for your channel you have helped me tremendously with your videos on coolant and transmission fluid exchanges. Love the channel.

[@kellmarktv]

Great information 👍 👌🏽

[@RuthlessPropaganda]

my honda civic 1995 looks similar. but does not have that bottom attachment. what is that called? great video by the way. im bout to sub and read through the comments. maybe someone has also asked my question.

[@miriamvivo4279]

Another worry when buying a used vehicle. Old age on all the rubber components. I'll stick with toyota and honda I think they use good quality rubber components. Guess I'll have to check for cracks I`ll start with my wifes 95 honda odyssey with 300,000 miles thanks for the tip peace and good health

[@BigDog50001]

Thanks for the comment!

[@MeloneKidd]

The main clamp on my air filter is basically off although it still sits in place. Its a 99 dodge ram 1500 5.9. sometimes when idling it will run real real quiet or sometimes when leaving a stop sign or getting up to speed it will have trouble and even jump or stutter. Does this have anything to do with the clamp not totally tightened down. Im going to tighten it down either way but im curious if this is the direct problem

[@Fox9582]

I had a civic 2005 ex coupe. Always run good but as soon as i reached a traffic light or stop and made the full stop it started to shake. If i press the gas and the break at the same time it will stop shaking when the odometer reaches between 1000 and 1500 rpm. Never found the problem so I got to sell it.

[@BigDog50001]

Thanks for the input!

[@franciscopeirat8395]

Hi, Big Dog! I got an aftermarket hose, but the hole where the temp. sensor goes, it's closed in the inside! Do I need to open It, I mean, make a hole in it, right?

[@future916]

I have a power stroke and I'm not able to keep the air box hooked up.. is it a big problem

[@Tngoz]

Any chance you good do a video on a 2008 Altima? Air hose crack on the boot.

[@tasmahmood1411]

I have this issue at the moment cleaned the maf sensor but not resolved the issue. I found my pipercross sports cone air filter was split/ripped on the underside. Would this be the cause? And a chance of air filter should resolve the issue?

[@cariefeslowley9920]

So if it’s fix will it automatically come off the safety mode?

[@stephenhiguera4472]

If that had a big crack in it almost all the way 8n 1/2 would that cause the car to not stay running?

[@rebopacastro8873]

I wanna ask some questuons,i have crv gen 2..why is that when running the rpm goes wild everytime i shift.is it because of vacuum leak? Thanks

[@kennethjames8314]

What about putting a high performance air flow hose on a Tacoma?

[@elainebazzano7376]

I have a small crack in the tube is it ok to duct tape it?

[@Rajveer-zf2yu]

Can this tune cause multi misfire ??

[@ernestalfa9045]

I just founded that 2 days ago

[@miggyspain3218]

I had a question if anyone can help how do you take those clamps off on a 2012 honda accord ive tried a phillips ph1 and it sorta fits but i havent had any luck i dont want to strip the bolt ive seen others recommended a 7/32 socket. If anyone can help thank you

[@Davidrodriguez-rz1sp]

Are these relatively easy to replace at home by yourself?

[@BigDog50001]

I'm sure some can be a pain, but typically they are not much more difficult than replacing an air filter.

[@Davidrodriguez-rz1sp]

@@BigDog50001 got it - thanks. Got a crack in mine and spent $10 on an RTV sealant but I think I’ll just spend the $30 and replace the whole thing.

[@fordexplorer4758]

Can it cause vibrating on engine

[@saulgarcia928]

Did you get the replacement from the dealer or another source?

[@BigDog50001]

Dealer

[@dr_920]

Is there a temparary fix for the crack intake hose? I have ordered the part, but it will arrive 10 days later.

[@BigDog50001]

In most cases I typically will wrap it with Gorilla Tape as a temporary fix.

[@dr_920]

@@BigDog50001 Thank you.

[@MikeKollin]

What's the name of the metal tube that comes from the engine that goes back into the air intake tube right before the throttle body? I bought the Rubber Hose to connect it to the engine. And I want to learn how to clean it before I reconnect it. Thank you! EDIT: I figured it out and already cleaned it and reconnected it with a new rubber tube piece that connects to the engine block... Thanks everyone!

[@joseprado8532]

Throttle Body?

[@MikeKollin]

@@joseprado8532 No... it's a tiny metal tube smaller than your pinky about 7 inches long. It is connected by a 3 inch rubber tube to the top of the engine. It's where people replace it with an oil catch container instead of letting the engine air go back into the throttle. It connects to the rubber big round tube that comes from your air filter and that rubber tube goes into the throttle body...

[@jasminerobinson201]

Maf sensor

[@MikeKollin]

@@jasminerobinson201 Thank you... I figured it out... it's not the sensor. It's a metal tube that connects to the back of the engine block and goes to the air intake rubber tube that goes into the throttle body. It connects about 2 or 3 inches before the MAF Sensor... Thanks though...

[@junjungebutan843]

What happen if air filter has leak??

[@myronfleming8457]

That’s the problem I am having.

[@PhillyDee215]

Yup, hondas are notorious for these intake tubes🙄

[@BigDog50001]

👍

[@Rajveer-zf2yu]

Tube **

[@maingun07]

Ya know (auto engineers, i'm talking to you), the old _metal_ frying pans never cracked and leaked. Just saying.

[@BigDog50001]

lol