MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: DarkSideJohn on November 10, 2012, 02:41:48 pm

Title: How to find a tiny tiny tiny boost leak ?
Post by: DarkSideJohn on November 10, 2012, 02:41:48 pm

Hey guys,

With the annoying squeal I've been having with my 2.0 TDI , it has been suggested I may have a tiny leak in one of my hoses, you know kinda pin prick sort size. Not enough to be logged as a fault code or light etc but enough to give a high pitched squeal when on boost.

Before replacing hoses at will I was wondering if there was any tried and tested ways of finding leaks. Apparently there are like 7 or 8 hoses it could be, not that I know what I'm actually talking about !

Any advice would be truly fantastic as always !


John

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: bacillus on November 10, 2012, 02:50:57 pm

I think you can get a smoke test done to pin point a boost leak.

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: B3n on November 10, 2012, 03:34:01 pm

Apply soapy water to pipes and look for bubbles etc :happy2:

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: daz_pd on November 10, 2012, 08:04:41 pm

does it sound kinda like a police siren by any chance?

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: DarkSideJohn on November 10, 2012, 08:11:27 pm

Quote from: daz_pd on November 10, 2012, 08:04:41 pm

does it sound kinda like a police siren by any chance?

Nope, Its more of a high pitched "dog whistle" kinda noise

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: Andy on November 10, 2012, 08:23:21 pm

i had this on mine when i had the hybrid fitted--it was the pipe on the turbo that needed tighting

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: DarkSideJohn on November 10, 2012, 08:39:04 pm

Quote from: maxitrol on November 10, 2012, 08:23:21 pm

i had this on mine when i had the hybrid fitted--it was the pipe on the turbo that needed tighting

How would I go about this bud ? Daft question I know but well.....

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: Andy on November 10, 2012, 08:50:45 pm

Am lucky as i work in a garage and have access to a ramp,you need to take the under tray of the car and you can see most of the boost pipes,also checkthe inter cooler pipes as well

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: Andy on November 10, 2012, 08:54:50 pm

Pic of the turbo from under the car
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fcc20%2Fmaxitrol%2FIMG_0606.jpg&hash=29ead06f177a48098c1401f93e220ba1935f44f4)

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: DarkSideJohn on November 10, 2012, 09:25:06 pm

So would it be worthwhile taking it to a garage I can trust and basically ask them to check all my pipes and hoses , especially turbo ?

Title: Re: How to find a tiny tiny tiny boost leak ?
Post by: Andy on November 10, 2012, 09:40:24 pm

It would be the easier way to do it