when is the last time you flushed the system?  should be done every few
years.
jimt
On Sunday, Oct 13, 2002, at 13:06 America/Denver, John Lauterbach wrote:

> I have been  using SIERRA coolant in my '84 for past couple of years.
> I am
> getting a jelly-like brown build-up on coolant reservoir, underside of
> pressure cap, and overflow tank.
>
> Any ideas as to what is happening?
>
> John Lauterbach
> Macon, GA
> '84 7-passenger
>