water level module and battery isolator

[chuck will]

Greetings> Question: Have you changed your fluid lately. I had a similar
problem and it took quite a while to fill the radiator up after replacing it.
Apparently the fill tubes go sideways and can get an air bubble in them so as you
heat the water and let it cool you keep adding anti freeze solution and eventually
all the air will come out. Chuck 78 Eleganza, Lompoc, CA I will look in the
morning for the sending unit part number. My books are in the coach. chuck

> Noone responded to my original inquiry, so I'll try again. My water level
> light glows faintly all the time. Shop manual says it's a module in the dash.
> Does anyone know a part number or parts store source? Also, my house
> batteries no longer charge from the alternator, so I think I need a new
> Isolator diode unit. Does anyone know a part number for a replacement?
>
> Thanks for the help.
>
> Darryl Kiehl
> 76 Royale

 

[hdavis]

>
>Noone responded to my original inquiry, so I'll try again. My water level
>light glows faintly all the time. Shop manual says it's a module in the dash.
>Does anyone know a part number or parts store source? Also, my house
>batteries no longer charge from the alternator, so I think I need a new
>Isolator diode unit. Does anyone know a part number for a replacement?

Darryl,

before you start replacing things in the charging system how about a little more information?

Have you checked your batteries for the ability to hold a charge?
It takes a pretty long drive to recharge the house batteries - can you charge them successfully from shore power?

Diodes typically fail completely and don't develop an extra voltage drop from what I've seen. If you remove the house battery
connection from the isolator do you get voltage on the house battery side? If so, what voltage?

For the glowing indicator - have you checked your grounds? I don't have my manuals here at home, but I do know that some parts
of the instrumentation can be biased as a result of ground resistance. I'm still chasing part of my dash problem, but it's
gotten better.

Good luck,

Henry

Henry Davis Consulting, Inc / new product consulting
PO Box 1270 / product readiness reviews
Soquel, Ca 95073 / IP reviews
ph: (408) 462-5199 / full service marketing
fax: (408) 462-5198
http://www.henry-davis.com

 

[dave lowry]

Darryl:

I had a new isolator put on my '76 Royale a few months ago, and it seems to
be working fine. As soon as I can get out there to check (in a day, or
two), I'll post the brand and part no. (unless I see that someone else has
answered your query first.

Dave