5KTQ gas cap question
Huw Powell
audi at mediaone.net
Mon Nov 13 12:08:23 EST 2000
> >What causes a burst of air when removing my gas cap on my 5KTQ? Is there
> >remedy? TIA
if it is pressurised air *escaping* there is something wrong. If it is
air *rushing in* due to a vacuum it is working right, congratulations I
haven't seen one do this for a long time...
the gas cap and tank are supposed to be sealed and the engine draws a
small vacuum on them to make sure the VOC's are burned, not released
into the atmosphere. culprits if it is wrong... charc. canister, CC
freq valve, lines to them, etc...
--
Huw Powell
http://www.humanspeakers.com
http://www.humanthoughts.org
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