MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: cageman86 on March 26, 2011, 01:39:24 pm

Title: Boost leak?
Post by: cageman86 on March 26, 2011, 01:39:24 pm: Hi guys, im new to the vdub scene bought a MK5 GTI in tornado red a couple of weeks ago, am absolutly loving it, my previous car was a renault clio 197 so its good to have a car that you dont have to thrash the beans out of to get it moving!! Anyways i have noticed over the last few days that the car doesnt seem to be coming up on boost properly, its as though when you hit 2500 rpm the car is just dumping all the boost and when the windows down you can hear a tschhh (apoligies for the poor attempt at sound writing) up untill you change gear when it starts again, i have been looking on here and have noticed that a few people have had diverter valve problems? Is there anything else it could be? There is no management lights up and if you didnt drive on turbo you would never know there was a problem, the turbo spools up fine by the sounds of it just not being transfered into the engine to produce power, just thought id try and see if anyone else has had the same symptoms and if so what the problem was, would hopefully save me having to take it to the stealers!

Any help would be much appreciated! Cheers guys!

Nick
Title: Re: Boost leak?
Post by: vRStu on March 26, 2011, 02:14:51 pm: Sounds to me like you'll be wanting to check and likely replace the DV.

A quick search should cover most of the subject :happy2:
Title: Re: Boost leak?
Post by: alexperkins on March 26, 2011, 05:41:50 pm: I've got a spare dv in perfect working order if you need it!
Title: Re: Boost leak?
Post by: Coe on March 26, 2011, 09:59:16 pm: Quote from: alexperkins on March 26, 2011, 05:41:50 pm
I've got a spare dv in perfect working order if you need it!

I think I saw your thread for your dv for sale. Can't find it now and am too new to able pm you. Still have it for sale?
Title: Re: Boost leak?
Post by: alexperkins on March 26, 2011, 10:04:18 pm: Ye still got it mate

25 posted. Get to 10 posts and you can pm ;)
Title: Re: Boost leak?
Post by: Geoffcarragh on March 26, 2011, 10:05:45 pm: My car made the same noise. replaced the DV and it was sorted, you'll really notice the difference when the new one is fitted.
Title: Re: Boost leak?
Post by: Coe on March 26, 2011, 10:07:52 pm: Quote from: alexperkins on March 26, 2011, 10:04:18 pm
Ye still got it mate

25 posted. Get to 10 posts and you can pm ;)

Can you drop me an email?-
Title: Re: Boost leak?
Post by: alexperkins on March 26, 2011, 10:15:39 pm: Emailed :)
Title: Re: Boost leak?
Post by: kierongti on March 27, 2011, 10:40:16 am: i would agree with the DV issue... unlikely that the management light would come on anyway as the turbo etc etc is boosting and working perfectly. the DV unit is both mechanical and electrical and the common faults with these are from the mechanical side, basically the rubbery type material inside wears away over time and creates small holes/rips which allows the boost to escape from it.
replace it yourself, 3 bolts and a plug, and u will feel the boost.... :driver:
Title: Re: Boost leak?
Post by: Teo10 on March 31, 2011, 03:04:10 pm: I have the same thing, with the windows down I can hear it whistling up and when I change gear can hear the Tssst noise too, but the boost etc seems fine and not affecting performance. Should I be looking at a new DV also?
Title: Re: Boost leak?
Post by: alexperkins on March 31, 2011, 03:05:57 pm: I can hear it whistle up with the windows down...thats just normal
Title: Re: Boost leak?
Post by: Teo10 on March 31, 2011, 03:08:52 pm: Quote from: alexperkins on March 31, 2011, 03:05:57 pm
I can hear it whistle up with the windows down...thats just normal

Thank gaawd!

Im still trying to get my polo sold so I can afford my cambelt change :sad1:
Title: Re: Boost leak?
Post by: alexperkins on March 31, 2011, 03:09:22 pm: What polo have you got Teo?