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Author Topic: Common places for boost leeks?  (Read 919 times)

Offline duckman

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Common places for boost leeks?
« on: 18 October 2012, 20:21 »
Hi guys, I'm sure my gti has a boost leek, dv valve has been changed and most vacuum pipes replaced, and no visible signs or split pipes, is there anything common faults?
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Offline Dalo Harkin

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Re: Common places for boost leeks?
« Reply #1 on: 19 October 2012, 07:20 »
what makes you think you have a leak?
do you have a boost gauge, if so whats it reading.

common places are both sides of the pancake pipe (behind drivers wheel)
under the inlet manifold where the PCV system is
look for oil on pipes, boost leaks, leak oil
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ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)

Offline duckman

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Re: Common places for boost leeks?
« Reply #2 on: 19 October 2012, 23:39 »
Seems really sluggish, plus I've noticed a high pitched whistle when accelerating aswell as the normal induction turbo noise, doesn't pull as it did but ill check the pan cake pipe thanks bud and get the odd cough when driving at motor way speeds
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Offline golfyste

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Re: Common places for boost leeks?
« Reply #3 on: 20 October 2012, 04:07 »
Line coming off DV
Check all connections are tight
Y piece behind inlet manifold
PVC system
Boost lines coming off charge pipe
Intercooler pipes

Pretty much everything under the bonnet  :laugh:
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Offline Jez 16v

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Re: Common places for boost leeks?
« Reply #4 on: 20 October 2012, 06:55 »
If its a diesel,I've had the intercooler pipe behind the drivers headlight pop off before.
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