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...
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'...