99 chances out of a 100 it's not the gage but the sensor in the
expansion tank. They go bad all the time, but I have never heard of
anyone haveing to replace the gage in the instrument cluster. That would
be a real PITA. The sensors are cheap, less that $10 I think, brand new,
from the Ron Salmon or Ken Wilford, and others. I have had so much
trouble with them I keep a spare amongst my spare parts in my
maintenance and emergency road kit. You might want to try replacing the
sensor unit before doing anything more.

John Rodgers
88 GL Driver

> George Averill wrote:
>
> I need some ideas for replacing the temperature gage that contains the
> red blinking light that indicates low water in the water reservoir.
> This has been an ongoing problem for several years.  Now I am working
> on it again.
>
> In the past, I have replaced the gage with a used one that worked
> several months then quit.  Then I replaced the gage with one from VW
> which lasted about six months.
>
> My questions are:
> 1.  What sources are there for replacement gages?  (Does anyone stock
> them besides the dealer?)
> 2.  Has anyone built a separate water level gage to bypass the one
> that came with the vehicle?
> 3.  Any ideas why the gages keep going bad?
>
> Thanks in advance.  If you send a reply to this message, please send
> it directly to me by e-mail so your reply won't get lost in all of the
> many messages on the site.  I have a hard time reading all of them.
>
> George
> 84 Camper
> Columbus, GA
>
> P.S.  The rear water heater core is in and working great!  The
> replacement was a snap; no trouble at all.  Thanks to all who
> responded with help.