Jason...

Whatever it is, my '90 Carat does it too.  Never heard it in my '84 GL.

I hope that someone out there knows what it is.

Fin Beven
Pasadena, CA
  ----- Original Message ----- 
  From: Jason Willenbrock 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Saturday, August 23, 2003 9:32 PM
  Subject: Gas Tank--Thunk!

  Hey All,
  Recently on my 90gl the gas tank has been acting wierd.  My inclination is in the return lines, but you tell me what you think.  After driving for as while and then i come to a stop light, after a few seconds, my gas tank goes thunk!  This also happens at the pump.  I begin filling the tank, and immediately the thunk occurs as if the tank is expanding.  As far as i can tell it does not occur while constant driving, only when stopped or filling.  Oh yeah, if I have been driving a while then I shut down the van, I wait a few seconds to a minute and behold--THUNK! It is driving me crazy.  It is like pressure is being released or not released when it is supposed to. What do you all think
  thanks
  Jason
  90gl
  87 Syncro-Westy-Wolfsburg to be?

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