Date:         Sun, 12 Aug 2018 16:45:39 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: temp gauge not working right...
Comments: To: Dan N <dn92610@gmail.com>
In-Reply-To:  <CAFdLW6n5bXFqJNszggUh6=dCiB-XyaUELZKrbgR0gpTftQhGKg@mail.gmail.com>
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>
> now a question if I may... when I ground the sender wire, the coolant gauge
> needle went to the max with a blinking light... - does it mean that the
> coolant gauge is working good? or does a bad gauge could doing that too?
>

A gauge that's out of calibration but otherwise working will respond to
this, but it's running twice the current (about 200 mA) through the gauge
that it's expecting.  If you want a calibrated result unplug the sender and
substitute a 35Ω 5% (or better) resistor.  That should blink the light and
if you wait a minute and tap the cluster a few times should be at the top
marking +/- half a needle width.

Yrs,
d