Bob

"fireater" <rjonese.removehere.@shaw.ca> wrote in message
news:6ebuf.7966$tl.3641@pd7tw3no...
> Lynn Coffelt wrote:
>> Friends 1998 Ford diesel powerstroke 250 with dual fuel tanks has a
>> problem with one tank's fuel gage. It reads empty all the time, even when
>> the tank is full.
>> Question is, should I be looking for a short or an open? Is the fuel
>> transmitter a float activated rheostat like in the olden days, or???????
>> Any tips are appreciated before I bundle up and brave the wind and
>> snow
>> to check it out.
>> Thanks in advance,
>> Lynn
>>
>>
> step one:
> disconnect the wire at the tank and check for power by shorting it to
> ground .... does gauge go to full?

You're bass ackwards here. If the wire is grounded it will go to empty and
an open circuit will go past full.
Bob

 

fireater

Bob wrote:
> "fireater" <rjonese.removehere.@shaw.ca> wrote in message
> news:6ebuf.7966$tl.3641@pd7tw3no...
>
>>Lynn Coffelt wrote:
>>
>>> Friends 1998 Ford diesel powerstroke 250 with dual fuel tanks has a
>>>problem with one tank's fuel gage. It reads empty all the time, even when
>>>the tank is full.
>>> Question is, should I be looking for a short or an open? Is the fuel
>>>transmitter a float activated rheostat like in the olden days, or???????
>>> Any tips are appreciated before I bundle up and brave the wind and
>>>snow
>>>to check it out.
>>>Thanks in advance,
>>>Lynn
>>>
>>>
>>
>>step one:
>> disconnect the wire at the tank and check for power by shorting it to
>>ground .... does gauge go to full?
>
>
> You're bass ackwards here. If the wire is grounded it will go to empty and
> an open circuit will go past full.
> Bob
>
>
since when on a ford is it wired like a chevy? what year did this happen?

Bob

"fireater" <rjonese.removehere.@shaw.ca> wrote in message
news:pGkwf.274789$ki.154072@pd7tw2no...
> Bob wrote:
>> "fireater" <rjonese.removehere.@shaw.ca> wrote in message
>> news:6ebuf.7966$tl.3641@pd7tw3no...
>>
>>>Lynn Coffelt wrote:
>>>
>>>> Friends 1998 Ford diesel powerstroke 250 with dual fuel tanks has a
>>>>problem with one tank's fuel gage. It reads empty all the time, even
>>>>when
>>>>the tank is full.
>>>> Question is, should I be looking for a short or an open? Is the
>>>> fuel
>>>>transmitter a float activated rheostat like in the olden days, or???????
>>>> Any tips are appreciated before I bundle up and brave the wind and
>>>> snow
>>>>to check it out.
>>>>Thanks in advance,
>>>>Lynn
>>>>
>>>>
>>>
>>>step one:
>>> disconnect the wire at the tank and check for power by shorting it to
>>> ground .... does gauge go to full?
>>
>>
>> You're bass ackwards here. If the wire is grounded it will go to empty
>> and an open circuit will go past full.
>> Bob
> since when on a ford is it wired like a chevy? what year did this happen?

Well, I never said they were "wired like a Chevy" but yea, an open circuit
will cause the fuel gauge to go over full. Been that way for a long time
too.
Bob

fireater

Bob wrote:
> "fireater" <rjonese.removehere.@shaw.ca> wrote in message
> news:pGkwf.274789$ki.154072@pd7tw2no...
>
>>Bob wrote:
>>
>>>"fireater" <rjonese.removehere.@shaw.ca> wrote in message
>>>news:6ebuf.7966$tl.3641@pd7tw3no...
>>>
>>>
>>>>Lynn Coffelt wrote:
>>>>
>>>>
>>>>> Friends 1998 Ford diesel powerstroke 250 with dual fuel tanks has a
>>>>>problem with one tank's fuel gage. It reads empty all the time, even
>>>>>when
>>>>>the tank is full.
>>>>> Question is, should I be looking for a short or an open? Is the
>>>>>fuel
>>>>>transmitter a float activated rheostat like in the olden days, or???????
>>>>> Any tips are appreciated before I bundle up and brave the wind and
>>>>>snow
>>>>>to check it out.
>>>>>Thanks in advance,
>>>>>Lynn
>>>>>
>>>>>
>>>>
>>>>step one:
>>>> disconnect the wire at the tank and check for power by shorting it to
>>>>ground .... does gauge go to full?
>>>
>>>
>>>You're bass ackwards here. If the wire is grounded it will go to empty
>>>and an open circuit will go past full.
>>> Bob
>>
>>since when on a ford is it wired like a chevy? what year did this happen?
>
>
> Well, I never said they were "wired like a Chevy" but yea, an open circuit
> will cause the fuel gauge to go over full. Been that way for a long time
> too.
> Bob
>
>
umm mt 79 ford isnt