You may have kinked the seal.... You did use a replacement seal, right?
Is it
dripping in the area you worked in?    Should be obvious.    Back out the
sensor
and make sure it is seated well with the gasket.....

Steven
91 Westy

On Wed, Jun 13, 2012 at 6:08 PM, Bill Burnham <bill@burnhamguides.com>wrote:

> Hey all, first time post, but I'm feeling squirrely about a minor fix that
> seems to have gone bad.
>
>
>
> I have a 1991 Vanagon. Yesterday I replaced my coolant temp sensor (engine
> part, not the one that is in the coolant tank) and now I'm experiencing a
> steady drop in coolant level. The expansion tank dropped to nothing
> overnight after the fix. I filled it this morning at 9 a.m. and it was
> depleted by noon. I refilled it around 3 p.m., took an hour drive, and by 7
> p.m. it was below the mark and dropping. I'm sure it will be empty by
> morning.
>
>
>
> Clearly there is a leak somewhere in the system but I've put the van over a
> pad and I don't see it pouring out. Where is this liquid going?
>
>
>
> I did include the O ring when I put the new sensor in, but given the loss
> of
> coolant, either I didn't install it right or there is a bigger issue.
>
>
>
> Any ideas/thoughts/input are appreciated.
>
>
>
> Bill in VA
>
> 1991 Vanagon
>
>
>
> Bill Burnham
>
> Onancock, VA
>
> 305-240-3298
>
> 757-787-2933
>
> www.southeastexpeditions.net
>
> www.burnhamguides.com
>