How to Fix Knocking Noise from Vacuum Pump on Audi A4 B7

[@EJR20]

0:35 it wasn’t idling high, that’s a cold start cycle. It revs a bit over idle to warm up quicker for about 60 seconds

[@webermp]

Minneapolis reporting in; yeah, after the deep freeze in January, I had the same issue. I was also getting oil leaking out of the vacuum pump so I replaced the whole thing. I saw online that the newer models of the pump actually address the leaking issue, so it was worth the time/effort. It actually wasn't awful (granted I had replaced the oil filter housing a month beforehand which took 8 hours so my concept of "not awful" might be skewed). I also noticed my brakes stopped squealing afterward. Not sure if it was related or if the squealing I'd heard was actually coming from the pump.

[@webermp]

MartyMcFly700 I actually did the work myself. I believe the part itself was $250.

[@nickedik]

Good solution! I replaced the o ring inside that line which fixed the issue but within 8 month it came up again. Im going to repair it the way u did it asap.

[@chuckweaverweaver6537]

How did you get the hose off to replace the oring ?

[@nickedik]

​@@chuckweaverweaver6537 hi actually my mechanic did. It is a bit of work

[@vrtdubber]

Eventually the o-ring will go again, and jb weld isn't the best at making air tight seals and holding them. So when it blows again it will leak passed the jb weld but now you can'treplace the o-ring like you did last time. Instead next time you do the o-ring make sure they use a genuine audi o-ring if you can get the right one. No o-ring will last forever, don't glue it together to try hide the problem.

[@aksgarage3230]

Just started having this problem. Good easy fix thanks

[@petervonpanda]

Awesome! Hope it works for you too!

[@kennys501]

Zip tie works better...squeeze and hold back into place..took noise away..perfect rig job.. if you don't want to spend the money to buy the pump

[@yahkissa5794]

Hey can I get a picture of that my dude

[@kennys501]

@@yahkissa5794 not sure how to send a picture through here.

[@jesusnieves786]

Kenny S send me a picture through my Instagram, jjethxell

[@Anxietyasfuck]

@@kennys501 me to

[@ReindeerBork]

Hey, curious how your fix is holding up? Also for people who think it’s the cam chain tensioner you can easily tell the difference if it is this as it will be visibly moving up and down when running on cold start and if you hold it down with a finger even lightly it goes away.

[@petervonpanda]

So far, it's still holding up fine!

[@B6S4818]

Thanks for the info! About to try this as the Audi dealership told me it was my cam chain tensioner.

[@dmaskell92]

Big thanks to you and the Audizine forum. Guys like you think outside of the box! I get what you mean about "the real fix is buying a new vacuum pump", but I hate this mentality. Buying a new part is only a temporary fix as the new one is going to be faulty also. I took my vacuum pump out to do this BTW, I have to service the bank 2 cam anyway. This reminds me of the trunk latch fix I did, and seeing people talk about how they're on their 4th trunk latch.

[@petervonpanda]

I like whatever works.

[@sussyzaddy4623]

Thanks for the video peter. I noticed this problem. While back and i am going to fix it my self the stealership would charge like $ 1000 for this simple fix because they dont want to work and they going to steal ur money... I am talking for my self experience here in bloomington, Illinois audi...

[@oscaracevedo2315]

i’ve had this problem since i first bought my a4… hopefully when i try this it will do it’s job

[@victor789012]

Should show before and after noise fix

[@petervonpanda]

Great point. The problem is it that it would only do it when it’s really cold and it warmed up by the time I got to repairing it.

[@kwamew.7996]

@@petervonpanda Did you ever upload a follow up video to this one? Like a post-fix video?

[@lukechurchill942]

@@petervonpanda if you fixed it wouldn’t it e the same as in warm or cold weather just no clicking either way

[@rhettoracle9679]

Vacuum line leaks might be the cheapest easiest fix in auto repairs. In your case, a new O ring may have worked as they shrink and decay over time. The quick cure JB Weld will be easier to remove if you need to replace pump later. All this remote diagnosis and you didn't have to wait hours on hold to India. Peace

[@fliboimoney]

Did you ever make a video with what it sounded like after you made repair?

[@jbassman6]

Looking around for the noise as well....found this: kzbin.info/www/bejne/rKTYdWSrr9KFoNk

[@79401Jeeper]

Woulda been nice to hear what it sounded like after you fixed it…just sayin’.

[@Blaaggarding]

No better I would imagine as he Didn't show it.i wish people would realise if you don't show a before and after your video is null and void. I love KZbin I'm a proud mechanic but I will admit I have checked KZbin for information on problems before while there is great advice to be had there is more disinformation than good and if you are not that well educated in vehicle repair it can lead you in the wrong direction ..I'm not saying this is the case here that is clearly a problem but is it the problem nobody knows because there was no after results.

[@maroonspirit7142]

You are a panda you are cool my friend

[@yoeldino15]

Good evening everyone, perform the repair according to the video and since then hot air enters the heating vents all the time. This happened to someone else? I put glue around the contour of the pipe.

[@mark.r8900]

Hi, can this create a vacuum leak? Thanks

[@ریاضاحمد-ص5ع]

Did it work? How was the result? Where is the next video at?

[@tyroneboutte6379]

What is an old video but I have a question do the noise go away after it warm up or stay

[@hectorllomeli]

Did it give you a check engine light, and or can it?

[@johnsnow7875]

Use a new ring with silicon grease to protect the ring, don't use glue ....

[@danieljakobsen1289]

I need to replace the pump because some idiot did this to my b7 🤦‍♂️

[@kiarabombaynails394]

@@danieljakobsen1289 lol

[@danieljakobsen1289]

@@kiarabombaynails394 ok.

[@scorpiongetoverhere1025]

Hey Thanks for the video I have a 3.0 tdi quattro b7 avant and I notice when accelerating I hear like air vent hissing sound almost like it’s from the ac system but it stop when come to a stop at lights , car performance seems fine, wonder if you can advise me on this ?

[@kinanal-akhras5336]

Did you ever find the problem with this

[@adnanrizmi6705]

@@kinanal-akhras5336 That sounds like a vacuum leak. Would perform a smoke test through the intake to find wear it leaks from. Vacuum leaks can sound like a hissing or whistling sound.

[@manjunathreddy1773]

Does this vaccum related issues any way impact Glow flash error or black smoke issue in ?. I'm having terrible problem with my Q5

[@andrewramos7792]

Black smoke is probably piston rings

[@quevedo3210]

Hello man! I have that same issue, but also my brake pedal its going alll the way down and the car does not brake, could be due to the same issue?

[@enimani7360]

Def you should change the Vacuum Pump.Issue resolved

[@ryanparsons2443]

It's not that making noise, mine did the same exact thing and it's the cam chain tensioner. Just replaced that with a new chain and many other things as I had to disassemble the engine to replace all my valves due to a timing belt breaking

[@YOARTHFU]

This idle is totally fine. On cold starts, the ecu is warming up the Oxygen sensor (Lambda), it takes around 1 minute. Just wait for it.

[@0xBret]

Not warming the o2 sensor but the oil, as it warms, the viscosity reduces and it can flow around the motor, lubricating properly

[@YOARTHFU]

@@0xBret not even, The o2 sensor takes 60 seconds to warm up to 600 (or above) celsius degree on 1200 rpm. You can read it in the service manual. Also I have a parking heater, to create engine preconditions, but still need to wait for o2 to start sending the signal for the correct fuel mixture. You can read the o2 measurement block in VCDS while on cold-star, it is warming up...

[@elden4267]

cant this make your brake pedal get stuck ?

[@danishzd]

faulty vacuum pump or large vacuum leak will do that.

[@libyanloyal7932]

Thanks bro

[@alloutofdonuts3998]

Will this cause the car not to start??

[@mousa-imari3778]

Excuse me I have 2009 A4 2,0tfsi has the same sound and I’m confused some people told me its need for restoration motor and now I saw your video is that’s mean my car has the same problem or not ?

[@jayy402killz]

Would this throw a engine code ? I got the same issue

[@petervonpanda]

Mine did not throw a code, but the noise was so loud, I didn't particularly drive with it knocking.

[@samuelmathew8541]

It’s not the vacuous the timing chain tensioner replaced mine and nomore knocking

[@nicke4976]

Did it get faster with higher rpm the tapping sound

[@teedizle]

i’m having that issue with my 2011 audi a4 2.0t auto

[@SpeedRacer.No11]

I doubt that JB Weld will hold it in place for very long. Looks like your pump is faulty and needs replacement. My 08 A4 2.0t Quattro does NOT have a "tab" where that hose ends on the pump body.

[@AngryOGLive]

Same for a4 b6?

[@glennmcfadden5355]

Its mid spring in Connecticut and my car sounds like this car cold and hot also causing misfire in cylinder 3 but that goes away as the car warm up. I just got the car. Someone JB the hoes going into the pump but not the end as shown in your video. My question is does the pump ever stop making the sound? I do have a use one that I need to get a new o ring for. I know its not the motor or the timing chain area. Will get a stethoscope to pinpoint the sound tomorrow

[@glennmcfadden5355]

@@adamsimon5489 that seem to go away as it started heating up outside. But my uncle has the car and we think its the timing chain.

[@Salstreams]

Hey I live in CT aswell my 08 Audi A4 has been behaving the same way ticking noise from back of engine afraid it’s the valve lifters or the timing chain tensioner

[@samuelmathew8541]

It’s not the vacuum bro it’s the timing chain tensioner the fail then stat to rattle there made of plastic

[@mattalexander9903]

Noise is from valves and rockers

[@robertmitrea3251]

Hello man! Did this problem cause your idle to be abnormal? I have uploaded 2 videos on my account of my TFSI idling and I suspect i have the same problem.

[@lukaszpygiel453]

I dont think so mr. ... the nocking comming from the front of engine

[@dave11686]

How many cars do you have now?

[@petervonpanda]

four

[@Jay-zd9kx]

I thought it was engine rod bearing knock or the valves

[@MartinAston00]

....oh man. 🤦🏽‍♂️....

[@checko07]

Wait, you never took video of the car running after this was fixed???

[@Jinny-Wa]

Hi, you know why my car makes this rattle when its warm, it's always at certain point like this? Trrrrr...........2seconds...............Trrrrrr.................2seconds..................Trrrrrrr.............2seconds.................Trrrrr.................2seconds.............

[@kanciastygra]

Chain and tensior want to be replaced i guess

[@collenz.mbengo5680]

I am experiencing the exact pronlem as well, like a vibration sound.

[@felipelonestar9588]

No please never use JB weld on your car . Like never

[@mattalexander9903]

Especially on a vacuum pump

[@ak11uk4]

if he told us to jump off a cliff, would we???...... I mean come on fella...... not that you are someone not to be trusted but I'm not going to mess up my car and try that and it does not actually work...... telling us it works, is not good enough! Show us the results by running the engine AFTER the alleged fix!

[@freezingdragon6988]

Fair. But I don’t think re-sealing a line will ruin your car.

[@Kevindavegan]

Bad idea

[@johannapoder2843]

Thats exactly how not to take care of your geman car

[@scrwbl8]

ewww

[@janielquinones9094]

Clickbait

[@jaxonobrien3995]

could this cause problems starting

[@janielquinones9094]

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