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Model specific boards => Golf mk4 => Topic started by: Rob Zombie on 13 December 2012, 17:37

Title: Strange air leak
Post by: Rob Zombie on 13 December 2012, 17:37
Hi guys

In getting a strange air leak... It seems to be from the pipe on the right just behind the manifold.

When I pull it up, the car starts to idle nicely again.

Can anyone help with wht pipe this is?

Any help would be appreciated

Cheers
Title: Re: Strange air leak
Post by: GTI.T on 13 December 2012, 18:47
just a rough guess sounds like your vacum hose
Title: Re: Strange air leak
Post by: Rob Zombie on 13 December 2012, 19:10
Okay cheers - when I pull it up - it stop hissing. Quite strange :s
Title: Re: Strange air leak
Post by: Rob Zombie on 14 December 2012, 11:36
Hi Guys,

Finally managed to graba  picture of my engine bay and circled where the problem lays in the photo below. If i pull the pipe up, the leak stops. It only starts again if I give the car some beans.

(http://i1232.photobucket.com/albums/ff366/robbeasley/problem_zpsfe67c896.jpeg)

Can anyone advise if they ahve come across this problem before - or part numbers for this pipe etc?

Cheers
Title: Re: Strange air leak
Post by: GTi_James on 14 December 2012, 12:08
replace that with a catch can, problem solved
Title: Re: Strange air leak
Post by: Rob Zombie on 14 December 2012, 12:22
Thanks mate - can you advise whatt he pip actually is and what's it function? what would the catch can do to sort my problem out?

I'm new to the mk4's you see!  :grin:

Ta
Title: Re: Strange air leak
Post by: Dalo Harkin on 14 December 2012, 12:49
looks like a brake booster pipe to me  :undecided:
but its a different engine to mine so unless it links into the PCV somewhere...
Title: Re: Strange air leak
Post by: GTi_James on 14 December 2012, 12:52
http://www.google.co.uk/imgres?q=mk4+golf+catch+can&start=303&um=1&hl=en&sa=N&tbo=d&tbm=isch&tbnid=23IaHY1_ty_6PM:&imgrefurl=http://uk-mkivs.net/forums/t/432664.aspx&docid=TCV2yXpg9i63oM&imgurl=http://i1085.photobucket.com/albums/j421/LEBMK4GTI/DSC00547_800x600.jpg&w=800&h=600&ei=Oh3LUPH0M4el4ATcgIGACg&zoom=1&iact=hc&vpx=2&vpy=262&dur=1922&hovh=194&hovw=259&tx=103&ty=90&sig=118343242820796282898&page=13&tbnh=144&tbnw=197&ndsp=28&ved=1t:429,r:3,s:300,i:13&biw=1152&bih=667 (http://www.google.co.uk/imgres?q=mk4+golf+catch+can&start=303&um=1&hl=en&sa=N&tbo=d&tbm=isch&tbnid=23IaHY1_ty_6PM:&imgrefurl=http://uk-mkivs.net/forums/t/432664.aspx&docid=TCV2yXpg9i63oM&imgurl=http://i1085.photobucket.com/albums/j421/LEBMK4GTI/DSC00547_800x600.jpg&w=800&h=600&ei=Oh3LUPH0M4el4ATcgIGACg&zoom=1&iact=hc&vpx=2&vpy=262&dur=1922&hovh=194&hovw=259&tx=103&ty=90&sig=118343242820796282898&page=13&tbnh=144&tbnw=197&ndsp=28&ved=1t:429,r:3,s:300,i:13&biw=1152&bih=667)

not the clearest of piks but you get the idea, it replaces the entire PVC system, and get rid of most of that crappy rubber stuff

at work will give details later
Title: Re: Strange air leak
Post by: Dalo Harkin on 14 December 2012, 13:23
PVC system

Not more window sellers  :grin:
Title: Re: Strange air leak
Post by: GTi_James on 14 December 2012, 13:25
PVC system

Not more window sellers  :grin:

PVC...picky Sod  :laugh:
Title: Re: Strange air leak
Post by: Rob Zombie on 14 December 2012, 13:27
lol!   :cool:

got a work "shindigg" tonight but will take the pipes out tomorrow (with a hangover) and see where the hissing is coming from - hopefully it's an easy fix!

Title: Re: Strange air leak
Post by: Rob Zombie on 15 December 2012, 16:28
Found the culprit,

When I took the covers off, I could see what appears to be s0me sort of plug on the end of the pipe I circled in the picture above.mit seemed to have popped out... There doesn't seem to be any clips to hold it in.

So I just taped it up until I can get a bit of day light to take the bracket off to get a better look.

Seems to be fine now now:)
Title: Re: Strange air leak
Post by: Dalo Harkin on 16 December 2012, 14:25
if it is part of the brake booster then no they are not held in with anything, even the one on the master cylinder is just pushed in
Title: Re: Strange air leak
Post by: Rob Zombie on 16 December 2012, 14:45
What would you recommend on hold tht puppy in?
Title: Re: Strange air leak
Post by: Dalo Harkin on 16 December 2012, 15:12
it should just push in, I have seen some with a piece of rubber around the pipe to make it snug but I dont have the same engine so couldnt even check for you
Title: Re: Strange air leak
Post by: Rob Zombie on 16 December 2012, 22:24
I'm sure there's a few things I can do - I've placed a bit of tape round it at the moment just for temporary measures until I think of a decent solution  :evil: