Fuel gauge trouble

[jrm1486]

Can anyone explain the resistor on the back side of the fuel gauge?.
My fuel gauge was relaaced along with the sending unit in the tank. Since that
time the gauge
reads backwards and very inaccurate. I have triple checked the wires, ground,
ignition,and
sending unit, checked the ignition for power it was ok, the ground was good. I
even ran an
external wire to the tank with the sending unit pulled out and operated outside
of the tank
the guage shows full when float is full down. When lifted it goes to empty, I
noticed there was
continunity amongst all of the connectors, I removed the resistor and for some
reason the
guage now reads 1/2 which is close as measured off of a yard stick.
Any of your vast knowledge would be appreciated to help me fix this Pain,
Thanks

John

1984 RB 35'

[Leroy Eckert]

I don't know what the unit looks like but if it has a ground and one wire it
sounds like the float might be assembled upside down. Is it possible to
assemble that way? Sounds crazy but I have done that in a boat tank before.

Leroy Ekert
1990 WB-40"Smoke N Mirrors"
Niceville, FL





----- Original Message -----
From: jrm1486
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, March 14, 2007 12:11 PM
Subject: [WanderlodgeForum] Fuel gauge trouble


Can anyone explain the resistor on the back side of the fuel gauge?.
My fuel gauge was relaaced along with the sending unit in the tank. Since that
time the gauge
reads backwards and very inaccurate. I have triple checked the wires, ground,
ignition,and
sending unit, checked the ignition for power it was ok, the ground was good. I
even ran an
external wire to the tank with the sending unit pulled out and operated
outside of the tank
the guage shows full when float is full down. When lifted it goes to empty, I
noticed there was
continunity amongst all of the connectors, I removed the resistor and for some
reason the
guage now reads 1/2 which is close as measured off of a yard stick.
Any of your vast knowledge would be appreciated to help me fix this Pain,
Thanks

John

1984 RB 35'





[Non-text portions of this message have been removed]

[john moore]

I did not see two wires going to the sending unit, just the one going to the
center of (and only) the connection of the unit. Any idea it works without
the resistor?

thanks


john


1984 RB 35'

>From: "Leroy Eckert"
>Reply-To: WanderlodgeForum@yahoogroups.com
>To:
>Subject: Re: [WanderlodgeForum] Fuel gauge trouble
>Date: Wed, 14 Mar 2007 12:34:59 -0600
>
>I don't know what the unit looks like but if it has a ground and one wire
>it sounds like the float might be assembled upside down. Is it possible to
>assemble that way? Sounds crazy but I have done that in a boat tank
>before.
>
>Leroy Ekert
>1990 WB-40"Smoke N Mirrors"
>Niceville, FL
>
>
>
>
>
> ----- Original Message -----
> From: jrm1486
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wednesday, March 14, 2007 12:11 PM
> Subject: [WanderlodgeForum] Fuel gauge trouble
>
>
> Can anyone explain the resistor on the back side of the fuel gauge?.
> My fuel gauge was relaaced along with the sending unit in the tank.
>Since that time the gauge
> reads backwards and very inaccurate. I have triple checked the wires,
>ground, ignition,and
> sending unit, checked the ignition for power it was ok, the ground was
>good. I even ran an
> external wire to the tank with the sending unit pulled out and operated
>outside of the tank
> the guage shows full when float is full down. When lifted it goes to
>empty, I noticed there was
> continunity amongst all of the connectors, I removed the resistor and
>for some reason the
> guage now reads 1/2 which is close as measured off of a yard stick.
> Any of your vast knowledge would be appreciated to help me fix this
>Pain,
> Thanks
>
> John
>
> 1984 RB 35'
>
>
>
>
>
>[Non-text portions of this message have been removed]
>

_________________________________________________________________
Get a FREE Web site, company branded e-mail and more from Microsoft Office
Live! http://clk.atdmt.com/MRT/go/mcrssaub0050...direct/01/

[Ralph L. Fullenwider]

Hi John:

The resistor is usually used to balance the gauge and sender and match the
ohms needed for the gauge.

It sounds like the ground and hot are reversed on one end or the other. It
should not hurt anything to replace the resistor, pull the sending unit and
reverse the ground and hot and see what your gauge does.

Safe travels,

Ralph and Charolette Fullenwider
'84 FC35 Duncan, Oklahoma
Ralph's RV Solutions

At 06:11 PM 3/14/2007 +0000, you wrote:
>Can anyone explain the resistor on the back side of the fuel gauge?.
>My fuel gauge was relaaced along with the sending unit in the tank. Since
>that time the gauge
>reads backwards and very inaccurate. I have triple checked the wires,
>ground, ignition,and
>sending unit, checked the ignition for power it was ok, the ground was
>good. I even ran an
>external wire to the tank with the sending unit pulled out and operated
>outside of the tank
>the guage shows full when float is full down. When lifted it goes to
>empty, I noticed there was
>continunity amongst all of the connectors, I removed the resistor and for
>some reason the
>guage now reads 1/2 which is close as measured off of a yard stick.
>Any of your vast knowledge would be appreciated to help me fix this Pain,
>Thanks
>
>John
>
>1984 RB 35'

[Leroy Eckert]

If you have one wire in the center, sending wire to the gauge , the float must
ground to the tank.. Typically, 80% of the time, you can eliminate the gauge
circuit by removing the sender line from the float and the gauge should read
empty. If you ground the same wire it should read full. I'm not sure about that
resistor on the back of the gauge unless it is used to mate the gauge to the
sender.
If the gauge circuit is eliminated, that float has to be screwed up some how.

Leroy Eckert
1990 WB-40"Smoke N Mirrors"
Niceville, FL





----- Original Message -----
From: john moore
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, March 14, 2007 1:01 PM
Subject: Re: [WanderlodgeForum] Fuel gauge trouble


I did not see two wires going to the sending unit, just the one going to the
center of (and only) the connection of the unit. Any idea it works without
the resistor?

thanks

john

1984 RB 35'

>From: "Leroy Eckert"
>Reply-To: WanderlodgeForum@yahoogroups.com
>To:
>Subject: Re: [WanderlodgeForum] Fuel gauge trouble
>Date: Wed, 14 Mar 2007 12:34:59 -0600
>
>I don't know what the unit looks like but if it has a ground and one wire
>it sounds like the float might be assembled upside down. Is it possible to
>assemble that way? Sounds crazy but I have done that in a boat tank
>before.
>
>Leroy Ekert
>1990 WB-40"Smoke N Mirrors"
>Niceville, FL
>
>
>
>
>
> ----- Original Message -----
> From: jrm1486
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wednesday, March 14, 2007 12:11 PM
> Subject: [WanderlodgeForum] Fuel gauge trouble
>
>
> Can anyone explain the resistor on the back side of the fuel gauge?.
> My fuel gauge was relaaced along with the sending unit in the tank.
>Since that time the gauge
> reads backwards and very inaccurate. I have triple checked the wires,
>ground, ignition,and
> sending unit, checked the ignition for power it was ok, the ground was
>good. I even ran an
> external wire to the tank with the sending unit pulled out and operated
>outside of the tank
> the guage shows full when float is full down. When lifted it goes to
>empty, I noticed there was
> continunity amongst all of the connectors, I removed the resistor and
>for some reason the
> guage now reads 1/2 which is close as measured off of a yard stick.
> Any of your vast knowledge would be appreciated to help me fix this
>Pain,
> Thanks
>
> John
>
> 1984 RB 35'
>
>
>
>
>
>[Non-text portions of this message have been removed]
>

__________________________________________________________
Get a FREE Web site, company branded e-mail and more from Microsoft Office
Live! http://clk.atdmt.com/MRT/go/mcrssaub0050...direct/01/





[Non-text portions of this message have been removed]

[Ralph L. Fullenwider]

Leroy:

Sounds like you have hit the nail on the head, that would certainly explain it.

Safe travels,

Ralph and Charolette Fullenwider
'84 FC35 Duncan, Oklahoma
Ralph's RV Solutions

At 12:34 PM 3/14/2007 -0600, you wrote:
>I don't know what the unit looks like but if it has a ground and one wire
>it sounds like the float might be assembled upside down. Is it possible
>to assemble that way? Sounds crazy but I have done that in a boat tank before.
>
>Leroy Ekert
>1990 WB-40"Smoke N Mirrors"
>Niceville, FL
>
>
>
>
>
> ----- Original Message -----
> From: jrm1486
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wednesday, March 14, 2007 12:11 PM
> Subject: [WanderlodgeForum] Fuel gauge trouble
>
>
> Can anyone explain the resistor on the back side of the fuel gauge?.
> My fuel gauge was relaaced along with the sending unit in the tank.
> Since that time the gauge
> reads backwards and very inaccurate. I have triple checked the wires,
> ground, ignition,and
> sending unit, checked the ignition for power it was ok, the ground was
> good. I even ran an
> external wire to the tank with the sending unit pulled out and operated
> outside of the tank
> the guage shows full when float is full down. When lifted it goes to
> empty, I noticed there was
> continunity amongst all of the connectors, I removed the resistor and
> for some reason the
> guage now reads 1/2 which is close as measured off of a yard stick.
> Any of your vast knowledge would be appreciated to help me fix this Pain,
> Thanks
>
> John
>
> 1984 RB 35'

[James Harvie]

Leroy. I'd leave it alone. Think about it, you're producing fuel, while you're
driving, maybe you can sell some off.(jk). If I were to take a guess, I'd say
the guage was wired backwards, sending the current, the wrong way.You'll have to
isolate the circut. You should be able to remove the wire, from the sender,(key
off), then turn the key on, and ground the wire. The guage should read full. If
it does, the guage is ok, the problem should be in the sending unit. If it
dosen't, I'd take another look at how that guage was wired. That's the way to
troubleshoot 99% of them, maybe Bluebird is different, so you may want to get a
second opinion. I tried to email you, but my message was returned, Good luck,
Jimmy

Leroy Eckert wrote: I don't know what the unit
looks like but if it has a ground and one wire it sounds like the float might be
assembled upside down. Is it possible to assemble that way? Sounds crazy but I
have done that in a boat tank before.

Leroy Ekert
1990 WB-40"Smoke N Mirrors"
Niceville, FL

----- Original Message -----
From: jrm1486
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, March 14, 2007 12:11 PM
Subject: [WanderlodgeForum] Fuel gauge trouble

Can anyone explain the resistor on the back side of the fuel gauge?.
My fuel gauge was relaaced along with the sending unit in the tank. Since that
time the gauge
reads backwards and very inaccurate. I have triple checked the wires, ground,
ignition,and
sending unit, checked the ignition for power it was ok, the ground was good. I
even ran an
external wire to the tank with the sending unit pulled out and operated outside
of the tank
the guage shows full when float is full down. When lifted it goes to empty, I
noticed there was
continunity amongst all of the connectors, I removed the resistor and for some
reason the
guage now reads 1/2 which is close as measured off of a yard stick.
Any of your vast knowledge would be appreciated to help me fix this Pain,
Thanks

John

1984 RB 35'

[Non-text portions of this message have been removed]






---------------------------------
TV dinner still cooling?
Check out "Tonight's Picks" on Yahoo! TV.

[Non-text portions of this message have been removed]

[Leroy Eckert]

Yeah really.. I sent a second response as you say, ground the wire and check
the guage circuit.

So now my e-mail is being returned. I is a crazy electronic world.
jwasnewski@...

Thanks

Leroy Eckert
1990 WB-40"Smoke N Mirrors"
Niceville, FL

[Non-text portions of this message have been removed]

[Henry Jay Hannigan]

---My fuel gage is pegged to the right with the engine running...any
suggestions....
Regards & LOL
Hank Hannigan
90SP36








In WanderlodgeForum@yahoogroups.com, "Leroy Eckert"
wrote:
>
> Yeah really.. I sent a second response as you say, ground the
wire and check the guage circuit.
>
> So now my e-mail is being returned. I is a crazy electronic
world. jwasnewski@...
>
> Thanks
>
> Leroy Eckert
> 1990 WB-40"Smoke N Mirrors"
> Niceville, FL
>
> [Non-text portions of this message have been removed]
>

[Leroy Eckert]

Yes, I believe your engine fuel system is bypassing more fuel than the engine
uses resulting in a full tank. It is like buying widgets for fifty cents each
and selling them for a quarter. You have the opportunity to pile them high,
sell them cheap and make up the difference in volume sales. Lol. I would not
believe anything about this post. lol.

I hope all is well in Vegas. How was the race? JJ did it again.

Leroy Eckert
1990 WB-40"Smoke N Mirrors"
Niceville, FL






----- Original Message -----
From: Henry Jay Hannigan
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, March 15, 2007 9:23 AM
Subject: [WanderlodgeForum] Re: Fuel gauge trouble


---My fuel gage is pegged to the right with the engine running...any
suggestions....
Regards & LOL
Hank Hannigan
90SP36

In WanderlodgeForum@yahoogroups.com, "Leroy Eckert"
wrote:
>
> Yeah really.. I sent a second response as you say, ground the
wire and check the guage circuit.
>
> So now my e-mail is being returned. I is a crazy electronic
world. jwasnewski@...
>
> Thanks
>
> Leroy Eckert
> 1990 WB-40"Smoke N Mirrors"
> Niceville, FL
>
> [Non-text portions of this message have been removed]
>





[Non-text portions of this message have been removed]