Date:         Sat, 26 Jan 2002 21:30:38 -0800
Reply-To:     mark drillock <drillock@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         mark drillock <drillock@EARTHLINK.NET>
Subject:      Re: Diesel: Temp gauge gone crazy
Comments: To: David Beierl <dbeierl@ATTGLOBAL.NET>
Content-Type: text/plain; charset=us-ascii

AFAIK 82 diesels do NOT have the coolant low level control unit and no
coolant sensor in the coolant tank. There is a wire in the engine
harness and a 2 pin connector dangling at the coolant tank but it is not
used and it is directly wired in parallel with the gauge temp sender.
Shorting it will thus cause the temp gauge to peg and light to flash,
the opposite of 83+ systems.

83+ diesels have the same coolant temp and level warning system as
waterboxers.

If more info is needed, just ask.

Mark


David Beierl wrote:
>
> At 09:59 PM 1/26/2002, Gnarlodious wrote:
> >Entity David Beierl spoke thus:
> >
> > > Anybody have the wiring details?
> >http://home.earthlink.net/~gnarlodious/pg03.gif
> >
> >The image quality is poor but it's a start.
>
> Ok, that's from the '83 diesel diagram, 97.43, which I missed.  Appears
> identical to the '83-4 waterboxer.  However, if there is in fact no "cool
> low lvl wrng sw" (IOW those two stainless pins sticking into the expansion
> tank) then the line coming from pin S of the control unit has to be tied to
> some fixed voltage or it will permanently  sound the alarm.  So something
> is missing from some diagram somewhere -- or else they just didn't install
> the control unit, which makes plenty sense since I'm sure even VW paid a
> deutschmark or two for it.
>
> If there *is* a sensor in the expansion tank, short across the plug and/or
> ground the wire that isn't brown.  If the blinking stops, bad ground or
> dirty sender pins.
>
> david
>
> --
> David Beierl - Providence, RI
>   http://pws.prserv.net/synergy/Vanagon/
> '84 Westy "Dutiful Passage"
> '85 GL "Poor Relation"