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vacuum

  1. Pressurised fuel tank?

    2009 Civic (8G)
    When I unscrew the filler cap there's a hissing sound which is either caused by a vacuum in the tank (and the air is rushing in) or pressure in the tank (air is rushing out). I can't tell which it is. Is this normal or do I have a blocked breather somewhere? :surprise: The car is performing...
  2. need help with my honda civic 1.7 CDTI

    Previous Civics
    Hello, I have a really important question and I really hope someone can help me. I'm searching for a 'vacuum hose diagram' for my Honda Civic because someone (a friend who said he would fix my car) has messed up whole the vacuum hose route. The only problem is, I can't find this 'diagram'...
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