Finally found the problem !!!

[stevengrande]

Earlier this summer I brought my car to the dealership because I started hearing the same loud ticking noise as described in this thread. Fearing it was a follower issue, I had them check it out. They told me nothing was wrong and the noise was consistent with A4s with the FSi engines. Fast forward to seeing this thread, I'm bringing it to show them and then buying some JBWeld.

-Probably sent while driving my A4 from my Nexus 7-

[PDX04a4]

Interesting, 100k miles on mine and no signs of this problem, just checked out the hose/connection on a cold start, absolutely zero movement.

[Avantageous]

I just went ahead and JB welded the hose to the cover after parking the car for the night.

Started this morning and the noise is gone. Just like PDX04a4, I checked at 104K and no movement.
But I like I stated, now at 106K and movement yesterday and tapping. Hopefully the fix will hold.

Anyone who has done the fix for a while now can hopefully chime in. Also the brake issue didn't show up
this morning. I am thinking this has resolved the issue.

[fly300kts]

I came up with this fix and even today, at 140K, no issues

Phil

[Avantageous]

I would like to thank fly300kts (Phil) for recognizing the problem and finding a solution.

I apologize for not noting this.

It's good to hear that the fix is holding up. I rechecked my weld and everything is solid.

[alecoder]

Hi, i have read this thread, also have done this one. i have some RMP jump problem. after discuss this thread, i checked my vehicle and found this: http://www.youtube.com/watch?v=vExqaEZ23PA. so what you think about my car ? does this similar to vacuum problem or i should to replace this F***ing TC ?

[Adamovich]

Seal "Pump to housing" - Victor Reinz № 40-76041-20

[alecoder]

Adamovich
what is a part number ?

[Moxi]

Same issue on mine, will post pics with before and after of issue with fix.

[fly300kts]

Hi, i have read this thread, also have done this one. i have some RMP jump problem. after discuss this thread, i checked my vehicle and found this: http://www.youtube.com/watch?v=vExqaEZ23PA. so what you think about my car ? does this similar to vacuum problem or i should to replace this F***ing TC ?

Same problem. JB weld time

Phil

[fly300kts]

I would like to thank fly300kts (Phil) for recognizing the problem and finding a solution.

I apologize for not noting this.

It's good to hear that the fix is holding up. I rechecked my weld and everything is solid.

Your welcome

Phil

[Adamovich]

Adamovich
what is a part number ?

Victor Reinz № 40-76041-20

[Axis]

Checked when I started my car when cold and I have this problem too, I was wondering if we remove the oem one use clip and we would put a 1" Fernco coupler on it, would it work?

Not a fan of JbWeld put if I dont find an alternative I'll go ahead and JbWeld that sh!t.

[fly300kts]

Checked when I started my car when cold and I have this problem too, I was wondering if we remove the oem one use clip and we would put a 1" Fernco coupler on it, would it work?

Not a fan of JbWeld put if I dont find an alternative I'll go ahead and JbWeld that sh!t.

Trust me, JB is the shit in this case

Phil

[Inked]

Trust me, JB is the shit in this case

Phil

x2....mines held up for 3 years now

[mr_pulido88]

Would the loose hose and possible vacuum leak have anything to do with a CEL with codes P0011, P000A?

[V2Rider]

Just looked at mine.....and I can pull the damn thing in and out! Wtf? Just gobbed a bunch of JB on it...we'll see.

[V2Rider]

I was just wondering......it almost seems to be like that on purpose. Is it supposed to move in and out, like a relief valve or something? If so, to late, lol. I already put the JB on it. Just wondering why it moves so freely.

[fly300kts]

I was just wondering......it almost seems to be like that on purpose. Is it supposed to move in and out, like a relief valve or something? If so, to late, lol. I already put the JB on it. Just wondering why it moves so freely.

No

Phil

[V2Rider]

Lol....ok then. Short and sweet :)

When are you coming up to the arctic to put try the Bose :)

[fly300kts]

Lol....ok then. Short and sweet :)

When are you coming up to the arctic to put try the Bose :)

Traveling in 2 weeks to Rice Lake, dropping off an aircraft.
Trust me, if I can bail out, I will, don't like the cold

Phil

[V2Rider]

Traveling in 2 weeks to Rice Lake, dropping off an aircraft.
Trust me, if I can bail out, I will, don't like the cold

Phil

I'll PM you my number, if your up here, and have time, you can experiment on my car (and maybe discount me) ;)

[fly300kts]

I'll PM you my number, if your up here, and have time, you can experiment on my car (and maybe discount me) ;)

PM me but again, I am trying to pass along this trip

Phil

[avants-line]

Thanks for the solution Phil, same noise on the car and now it's fixed

[Audibot]

Way to resurrect a thread. I'm gonna try this. I notice that when I go from neutral to drive, my RPMs usually fluctuate. Maybe part of the cause. Plus my brakes sometimes have a bit of give, and sometimes not. Explains a bit... I hope.

[teeoney]

Can say +1 to another one to solve noise and rpm fluctuations. Thanks Phil :-)

[audihere06]

Does the sound you refer to almost sound like a starter gear failing to disengage for a few seconds?

[Theiceman]

just got pointed to this thread from a fellow enthusiast as i was having the exact issue. looks like the route cause is a failing oring where the plastic piece goes into the housing. as noted by adamovich above a new o-ring should fix it without JB weld. However what is not clear is how that plastic piece comes out. Is it held in place by the vacuum pump housing or will that whole plastic piece wiggle out so you can replace the o-ring ?

without that info people are going to gob jb weld to fix the rattling , but could possibly still have a vacuum leak due to the failed seal .

Thoughts ??

[fly300kts]

Thoughts ??

jb weld

Phil

[Theiceman]

Ok thanks Phil. Looks like you were first so go try it so thanks for the tip. Funny think was guy thought this was serious issue so let the car go cheap 😉

[Flexcj5]

Plastic valve is held in place by two tabs, one on either side. The valve has to be pushed down and tabs depressed then it pulls out. I've used "L" shaped needle nose successfully to depress the tabs.

If your valve has up and down play the factory oring is the issue. It's square sided and seems to wear quickly. Replace it with a round oring and it will seal nice and tight.

[Theiceman]

Thanks Flex I think that is the cleaner fix I am looking for ..

[Tarheel92]

Sorry to resurrect a super old thread, but my car has exact same issue, with rather large vacuum leak. If I JB-Weld it, will that make it a huge PITA if I have to eventually replace the pump? Seems like it would be pretty difficult to separate the hose from the pump.

[fly300kts]

Sorry to resurrect a super old thread, but my car has exact same issue, with rather large vacuum leak. If I JB-Weld it, will that make it a huge PITA if I have to eventually replace the pump? Seems like it would be pretty difficult to separate the hose from the pump.

No, you can scrape the JB weld off at later time

Phil

[Gerblack]

Your original Pictures are down any way we can get those back up?

[DownhillA4]

Glad I found this thread, I noticed a wicked loud noise / rattle when I did my cam follower replacement earlier this week. Will have to see if my hose is loose too. So many little things on this motor!

[hokipau]

Thank you so much. Mine did not appear to have movement, however there was a large area of deposits around the connection and metal. Cleaned the area and hose with carb cleaner and small wire brush followed by a toothbrush and isopropyl alcohol. JBWeld (for plastic/metal) 30min set time and now all is well.

[Theiceman]

Thank you so much. Mine did not appear to have movement, however there was a large area of deposits around the connection and metal. Cleaned the area and hose with carb cleaner and small wire brush followed by a toothbrush and isopropyl alcohol. JBWeld (for plastic/metal) 30min set time and now all is well.

New oring would have solved it and look less ghetto. Its a Valid fix but ugly in my mind.


Sent from my iPhone using Audizine

[ThaVerge]

New oring would have solved it and look less ghetto. Its a Valid fix but ugly in my mind.


Sent from my iPhone using Audizine

Gotta thank Phil for the admittedly quick & dirty fix. Had this issue once the cold weather hit, and doing it his way took all of 2 minutes in the subzero temperatures (no garage).

[rfelker]

anyone have a part number for the oring? have same issue. thanks