In a message dated 9/8/2001 10:16:34 PM Eastern Daylight Time,
Kennethboy223@AOL.COM writes:

> I have a 1990 Vanagon that percolates the coolant when I drive to the Summit
> in Los Gatos and turn it off. Ive replaced the thermo fan switch to a  lower
> temp
> and it helped but still percolates. Anybody have a solution?
>

check your coolant mixture..is it brown like coffee? could be the reason for
your Percolation..

;<)    seriously tho more likely air in the coolant lines from an improperly
bled system..
chris

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