On Sat, 22 Jun 1996, Robert Cronin wrote:

>  When thumbing through Bentley, I 
> noticed that the tank in the book has a wire coming off the top of it.  
> is this the sending unit for the gauge?  My tank has no plug for the wire to 
> connect with, although the wire IS there.

Mine is the same way.  The sensor in the picture detects coolant level, 
but my 82 diesel only has the wiring loom, no sensor.  I'm not sure 
whether it's supposed to have a separate relay and LED or if it is 
designed to actuate the high temp. LED.

Mike