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Passat where can my fuel evaporate leak out

Tiny
SEUN
  • MEMBER
  • 2000 VOLKSWAGEN PASSAT
  • 138,465 MILES
Passat where can my fuel evaporate leak out.
Monday, February 13th, 2012 AT 5:20 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
What? Do you have an evap leak?
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Monday, February 13th, 2012 AT 6:05 PM
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
Very common spot would be the n80 valve (purge valve) With the engine off, remove the vacuum hose from it, get a vacuum gauge and apply 25 inhg of vacuum to it. It should hold vacuum, if it doesn't the valve is faulty.

Also, you should do what us VW technicians call a "paper test". Get a clean white piece of paper, bang the n80 valve down against the paper with the EVAP hose side facing downwards. Give it a few bangs, if black powder or charcoal comes out, you will have to replace the charcoal canister as well.
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Tuesday, February 14th, 2012 AT 3:46 PM

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