Re: Temperature Guage help

["David Teitelbaum" <jtrealty@xxxx>]

The sender unit on the front right side of the engine does ground the
wire from the gauge. It does this internaly to the metal of the engine
and varies the resistance proportionaly to the temperature of the
engine. The first thing to do would be to make sure the wire is still
attached to the sender but if you haven't been in that area my guess
is the problem is under the dashboard and not the sender unit on the
motor. If the wire is attached a "quick and dirty" test is to, with
the key on, have someone watch the guage and just touch the wire to
ground for a second and see if the gauge responds. If it doesn't then
the problem is either the wire or the guage. If it does move then the
problem is either a loose connection to the sender or a bad sender. DO
NOT GROUND THE WIRE FOR TOO LONG, IT WILL BURN UP THE GUAGE!
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, "James LaLonde" <deloreandmcxii@xxxx>
wrote:
> I just got done checking my fuel pump circuit and ended up replacing 
> the fuel pump... I was stuck on the side of the road, so I had 
> checked both the inertia switch and the pump relay. both of which 
> eneded up being fine... as once I got home I found that I had power 
> at the pump.
> 
> But I get everything in the rat's nest behind my passenger seat, and 
> everything under the dash and at the pump put back together... but 
> now my Temperature guage is pegged straigtt down. Apparently my 
> coolant is -80 degrees... perhaps that's too cold :P
> 
> My thought is that's it's either come unplugged at the sender or at 
> some point in between. Looking at my miniscule wiring diagram it 
> looks likes it's gounnded right after the guage... am I reading that 
> right? Where is it grounded? And where is the sender? Is it the one 
> on the block on the passeger side near the hot water valve?
> 
> Any suggestions on where to check? what to do?
> thanks!!!
> James L 004009