CJ fuel guage questions
 

Got this from a good web site someone recommended here. Read the last two
lines for testing. It says in a nut shell, if the guage does not move from
empty, the guage is bad. The next line then says if it does move, the sender
is bad. So if I do this test it reads damned if you do and damned if you
don't. Do the test and the needle should or shouldn't move. If it does, the
sender is bad. If it doens't the guage is bad. So either way this test will
find something bad. I don't get it. Anyone know of a more simple test for
the sender and the guage??? I'm totally confused by this one.
Allen


Testing the Fuel Sender unit on a CJ

The sender should have one wire (pink) with voltage from the sensor's
isolated center post.
The tab style connector and wire is a ground to the frame. Make sure it has
good contacts.

To be sure the problem is not the gauge, you can momentarily short the
(pink) wire on the output of the sender to ground, and this should show up
as FULL on your gauge.
No resistance at all will peg the needle FULL (the whole 12 volts).
DO NOT hold it long in this position - just touch it and release.
If the gauge does not move from EMPTY either the gauge's wiring has an open
circuit (no voltage, or no connection to ground) or he gauge and/or its
voltage regulator is bad. If it does move, the sender unit or its wiring is
bad.

Re: CJ fuel guage questions
 

This test appears to be intended for a system where the gauge is stuck on
empty, and you want to know why. In that case you already know that
something is bad, right?

Earle

<ABanks5@columbus.rr.com> wrote in message
news:U7_qb.488$zc1.312@fe3.columbus.rr.com...
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the
sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does,
the
> sender is bad. If it doens't the guage is bad. So either way this test
will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it
has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an
open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring
is
> bad.
>
>
>

Re: CJ fuel guage questions
 

This test appears to be intended for a system where the gauge is stuck on
empty, and you want to know why. In that case you already know that
something is bad, right?

Earle

<ABanks5@columbus.rr.com> wrote in message
news:U7_qb.488$zc1.312@fe3.columbus.rr.com...
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the
sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does,
the
> sender is bad. If it doens't the guage is bad. So either way this test
will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it
has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an
open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring
is
> bad.
>
>
>

Re: CJ fuel guage questions
 

This test appears to be intended for a system where the gauge is stuck on
empty, and you want to know why. In that case you already know that
something is bad, right?

Earle

<ABanks5@columbus.rr.com> wrote in message
news:U7_qb.488$zc1.312@fe3.columbus.rr.com...
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the
sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does,
the
> sender is bad. If it doens't the guage is bad. So either way this test
will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it
has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an
open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring
is
> bad.
>
>
>

Re: CJ fuel guage questions
 

So did you ground the wire at the tank to see if the gauge and
connection are good?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

ABanks5@columbus.rr.com wrote:
>
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does, the
> sender is bad. If it doens't the guage is bad. So either way this test will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring is
> bad.

Re: CJ fuel guage questions
 

So did you ground the wire at the tank to see if the gauge and
connection are good?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

ABanks5@columbus.rr.com wrote:
>
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does, the
> sender is bad. If it doens't the guage is bad. So either way this test will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring is
> bad.

Re: CJ fuel guage questions
 

So did you ground the wire at the tank to see if the gauge and
connection are good?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

ABanks5@columbus.rr.com wrote:
>
> Got this from a good web site someone recommended here. Read the last two
> lines for testing. It says in a nut shell, if the guage does not move from
> empty, the guage is bad. The next line then says if it does move, the sender
> is bad. So if I do this test it reads damned if you do and damned if you
> don't. Do the test and the needle should or shouldn't move. If it does, the
> sender is bad. If it doens't the guage is bad. So either way this test will
> find something bad. I don't get it. Anyone know of a more simple test for
> the sender and the guage??? I'm totally confused by this one.
> Allen
>
> Testing the Fuel Sender unit on a CJ
>
> The sender should have one wire (pink) with voltage from the sensor's
> isolated center post.
> The tab style connector and wire is a ground to the frame. Make sure it has
> good contacts.
>
> To be sure the problem is not the gauge, you can momentarily short the
> (pink) wire on the output of the sender to ground, and this should show up
> as FULL on your gauge.
> No resistance at all will peg the needle FULL (the whole 12 volts).
> DO NOT hold it long in this position - just touch it and release.
> If the gauge does not move from EMPTY either the gauge's wiring has an open
> circuit (no voltage, or no connection to ground) or he gauge and/or its
> voltage regulator is bad. If it does move, the sender unit or its wiring is
> bad.

Re: CJ fuel guage questions
 

I'd be curious if you find an answer to this. Mine is stuck also, but on
'F' rather than 'E' and I'm not sure where to begin figuring out the
problem.

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FAC75FA.5F357609@cox.net...
> So did you ground the wire at the tank to see if the gauge and
> connection are good?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> ABanks5@columbus.rr.com wrote:
> >
> > Got this from a good web site someone recommended here. Read the last
two
> > lines for testing. It says in a nut shell, if the guage does not move
from
> > empty, the guage is bad. The next line then says if it does move, the
sender
> > is bad. So if I do this test it reads damned if you do and damned if you
> > don't. Do the test and the needle should or shouldn't move. If it does,
the
> > sender is bad. If it doens't the guage is bad. So either way this test
will
> > find something bad. I don't get it. Anyone know of a more simple test
for
> > the sender and the guage??? I'm totally confused by this one.
> > Allen
> >
> > Testing the Fuel Sender unit on a CJ
> >
> > The sender should have one wire (pink) with voltage from the sensor's
> > isolated center post.
> > The tab style connector and wire is a ground to the frame. Make sure it
has
> > good contacts.
> >
> > To be sure the problem is not the gauge, you can momentarily short the
> > (pink) wire on the output of the sender to ground, and this should show
up
> > as FULL on your gauge.
> > No resistance at all will peg the needle FULL (the whole 12 volts).
> > DO NOT hold it long in this position - just touch it and release.
> > If the gauge does not move from EMPTY either the gauge's wiring has an
open
> > circuit (no voltage, or no connection to ground) or he gauge and/or its
> > voltage regulator is bad. If it does move, the sender unit or its wiring
is
> > bad.

Re: CJ fuel guage questions
 

I'd be curious if you find an answer to this. Mine is stuck also, but on
'F' rather than 'E' and I'm not sure where to begin figuring out the
problem.

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FAC75FA.5F357609@cox.net...
> So did you ground the wire at the tank to see if the gauge and
> connection are good?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> ABanks5@columbus.rr.com wrote:
> >
> > Got this from a good web site someone recommended here. Read the last
two
> > lines for testing. It says in a nut shell, if the guage does not move
from
> > empty, the guage is bad. The next line then says if it does move, the
sender
> > is bad. So if I do this test it reads damned if you do and damned if you
> > don't. Do the test and the needle should or shouldn't move. If it does,
the
> > sender is bad. If it doens't the guage is bad. So either way this test
will
> > find something bad. I don't get it. Anyone know of a more simple test
for
> > the sender and the guage??? I'm totally confused by this one.
> > Allen
> >
> > Testing the Fuel Sender unit on a CJ
> >
> > The sender should have one wire (pink) with voltage from the sensor's
> > isolated center post.
> > The tab style connector and wire is a ground to the frame. Make sure it
has
> > good contacts.
> >
> > To be sure the problem is not the gauge, you can momentarily short the
> > (pink) wire on the output of the sender to ground, and this should show
up
> > as FULL on your gauge.
> > No resistance at all will peg the needle FULL (the whole 12 volts).
> > DO NOT hold it long in this position - just touch it and release.
> > If the gauge does not move from EMPTY either the gauge's wiring has an
open
> > circuit (no voltage, or no connection to ground) or he gauge and/or its
> > voltage regulator is bad. If it does move, the sender unit or its wiring
is
> > bad.

Re: CJ fuel guage questions
 

I'd be curious if you find an answer to this. Mine is stuck also, but on
'F' rather than 'E' and I'm not sure where to begin figuring out the
problem.

"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:3FAC75FA.5F357609@cox.net...
> So did you ground the wire at the tank to see if the gauge and
> connection are good?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> ABanks5@columbus.rr.com wrote:
> >
> > Got this from a good web site someone recommended here. Read the last
two
> > lines for testing. It says in a nut shell, if the guage does not move
from
> > empty, the guage is bad. The next line then says if it does move, the
sender
> > is bad. So if I do this test it reads damned if you do and damned if you
> > don't. Do the test and the needle should or shouldn't move. If it does,
the
> > sender is bad. If it doens't the guage is bad. So either way this test
will
> > find something bad. I don't get it. Anyone know of a more simple test
for
> > the sender and the guage??? I'm totally confused by this one.
> > Allen
> >
> > Testing the Fuel Sender unit on a CJ
> >
> > The sender should have one wire (pink) with voltage from the sensor's
> > isolated center post.
> > The tab style connector and wire is a ground to the frame. Make sure it
has
> > good contacts.
> >
> > To be sure the problem is not the gauge, you can momentarily short the
> > (pink) wire on the output of the sender to ground, and this should show
up
> > as FULL on your gauge.
> > No resistance at all will peg the needle FULL (the whole 12 volts).
> > DO NOT hold it long in this position - just touch it and release.
> > If the gauge does not move from EMPTY either the gauge's wiring has an
open
> > circuit (no voltage, or no connection to ground) or he gauge and/or its
> > voltage regulator is bad. If it does move, the sender unit or its wiring
is
> > bad.