Turbo? Noise after putting your foot down

Adjcp

Member
Joined
Jul 9, 2019
Location
London
TDI
mark 5 golf
Hi, In the last couple of days I’ve noticed a noise after I take my foot off the gas in my mk5 tdi. Nothing like the sound that comes from a impreza when it changes gear but definitely audible, and sounds like air escaping. Has anyone experienced this? Is there something I need to replace to stop it happening? Should I be worried? Any advice appreciated...
 

Carlos_TJ

Veteran Member
Joined
Aug 3, 2014
Location
Tijuana Mexico
TDI
2009 Bora (BXE PD)
Does it sound like a hissing sound?
Have you perceived reduces engine power since that event?
Does your car still have its EGR/EGR cooler?
 

Adjcp

Member
Joined
Jul 9, 2019
Location
London
TDI
mark 5 golf
It’s less of a hiss and more of a vacuum sound ie lower pitched. No noticeable loss of power - not sure about the egr cooler - will investigate further
 

Garrison

Veteran Member
Joined
May 7, 2017
Location
Charlotte
TDI
Stg 3 - 2011 JSW
Just as a point of reference, my EGR is unplugged from the airbox (like the connecting hose is missing) and I hear this noise as well when driving. Less so when I put my foot in it, although that may be because it's drowned out by engine noise
 
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