[DeTomaso] Techno question: dead temp gauge

[Charles Engles]

Dear Mike, Paul and Tomas,


             I like the theoretical simplicity of the two Pantera test 
strategy, but......the other one is on jackstands with the engine out and 
without responsible adult supervision I have a vision efficiently screwing 
up two Panteras at once.   Something about getting the bad smoke in the 
wires transfused to the other one.....or something like that.

                       Warmest regards,  Chuck Engles


----- Original Message ----- 
From: "Tomas Gunnarsson" <guson at home.se>
To: <MikeLDrew at aol.com>; <detomaso at realbig.com>
Sent: Sunday, August 12, 2007 4:13 PM
Subject: Re: [DeTomaso] Techno question: dead temp gauge


> For that test to work you also need to connect the bodies of the two cars 
> with e.g. a jumper cable. Yes, the temp sender is a resistor that varies 
> with temperature.
>
> Tomas
>
> ----- Original Message ----- 
> From: <MikeLDrew at aol.com>
> To: <cengles at cox.net>; <detomaso at realbig.com>
> Sent: Sunday, August 12, 2007 10:43 PM
> Subject: Re: [DeTomaso] Techno question: dead temp gauge
>
>
>
> In a message dated 8/12/07 13 33 34, cengles at cox.net writes:
>
>
>> It is obvious that I am not sure if my problem is the sender or the
>> gauge at this point. Sigh.
>>
>
> This will sound VERY silly.   But there is a semi-easy way to test such
> things when you are as electrically-challenged as I am.
>
> You have the benefit of TWO Panteras in your garage.   Presumably the 
> other
> car has a functioning temp gauge?
>
> You can either swap senders (too much work), or get a long piece of wire,
> temporarily hook one end to the sender wire on the 'bad' car, and the 
> other end
> to the temp sender on the 'good' car.   Then start the good car and let it 
> warm
> up.   Turn on the key in the bad car; if the gauge works, then the problem 
> is
> *definitely* a bad sender in the bad car.
>
> I don't even know how the temp sender works.   I presume that 12V goes 
> into
> one side of the gauge, and the wire from the gauge to the sender is the 
> ground
> wire?   So the sender is some sort of ground rheostat?
>
> Somebody whose initials are SOB please help me understand this! :>)
>
> Mike
>
>
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