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Old 01-09-2014, 11:01 AM   #1
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fuel gauge woes

The gauge suddenly maxed out. We were parked and had not fueled for weeks.
Anyone have this problem and how did you fix it? It's the original gauge, most of my others have been changed-out to ISSPRO, can I measure ohms at the dash to order the correct gauge, or has anyone replaced theirs? Thanks in advance.
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Old 01-09-2014, 11:28 AM   #2
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Originally Posted by Mike Leary View Post
The gauge suddenly maxed out. We were parked and had not fueled for weeks.
Anyone have this problem and how did you fix it? It's the original gauge, most of my others have been changed-out to ISSPRO, can I measure ohms at the dash to order the correct gauge, or has anyone replaced theirs? Thanks in advance.
The sender unit is malfunctioning. You may be able to fix it by adding Techron
http://www.techron.com/techron-concentrate-plus/ to your fuel tank. If this doesn't fix it you will have to replace the sending unit.
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Old 01-09-2014, 11:54 AM   #3
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Hi Mike, long time no hear.

I don't think the Techron will do you much good because it's for gas not diesel.

You need to get to the wire from the sending unit to the gauge. Disconnect it and the gauge should go to "empty," ground the wire going to the gauge and it should read "full." If it does the gauge is good and the sender is bad. If the gauge doesn't move the gauge is probably bad. Another possibility is the wire has gone to ground between the sender and the gauge. These checks need to be done with the key in the "on" position.

Good luck old buddy.
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Old 01-09-2014, 12:02 PM   #4
Full Timers/Diesel power.
 
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Hi Mike, long time no hear.

I don't think the Techron will do you much good because it's for gas not diesel.

You need to get to the wire from the sending unit to the gauge. Disconnect it and the gauge should go to "empty," ground the wire going to the gauge and it should read "full." If it does the gauge is good and the sender is bad. If the gauge doesn't move the gauge is probably bad. Another possibility is the wire has gone to ground between the sender and the gauge. These checks need to be done with the key in the "on" position.

Good luck old buddy.
Thanks, Dan, hope you and your best are doing well. Have you replaced the sender at the tank before?
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Old 01-10-2014, 02:55 AM   #5
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Thanks, Dan, hope you and your best are doing well. Have you replaced the sender at the tank before?
I've had the tank out twice, first time when my father-in-law bought the coach back in 1992. It had been sitting for several years and was pretty plugged up. Second time when we got the coach, there was a split in the vent tubing that leaked when the tank was full.

Dropping the tank is a bit of work but not too bad. I pulled the sender to better access the inside of the tank but put the same one back in and it still works fine.

The wife and I are doing well and to start the new year off on a good note we bought this little guy home today.

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We are looking for a good Viking name for him if you have any suggestions.
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Old 01-10-2014, 09:27 AM   #6
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Cute doggie, how about "Thor"? Can I do as you described to test the sender/gauge behind the dash, or do I need to cut the wire somewhere back by the tank?
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Old 01-10-2014, 10:21 AM   #7
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The new family member looks more like Olaf than Thor to me.
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Old 01-10-2014, 10:23 AM   #8
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The new family member looks more like Olaf than Thor to me.
Maybe, but since THOR Industries owns Airstream, it's doubly appropriate.
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Old 01-10-2014, 10:54 AM   #9
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Smartstream is right. You either have a faulty sender or the wire is grounded out. You may be able to get at the wire from underneath.
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Old 01-10-2014, 01:51 PM   #10
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Thanks guys, Thor is extremely popular for Great Danes as is Zeus and Samson. I was looking for something more unusual. Olaf, Ollie, and Sven are on the list.

Yes Mike you can check the gauge at the dash. It's pretty tight getting to the gauge but you can verify if it's the gauge or the sender and connecting wire. The gauge is the easy fix so naturally most of the time the sending unit is the problem.
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Old 01-10-2014, 01:54 PM   #11
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Thanks guys, Thor is extremely popular for Great Danes as is Zeus and Samson. I was looking for something more unusual. Olaf, Ollie, and Sven are on the list.
A Great Dane isn't a horse, but it's as big as one, so how about Sleipnir?
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Old 01-10-2014, 02:22 PM   #12
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A Great Dane isn't a horse, but it's as big as one, so how about Sleipnir?
That's a good one. I'm not at all sure how to pronounce it and I will at some point have to call him. Odin his rider might be better for someone as vocally challenged as I am.
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Old 01-10-2014, 02:28 PM   #13
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That's a good one. I'm not at all sure how to pronounce it and I will at some point have to call him. Odin his rider might be better for someone as vocally challenged as I am.
Pronounced "Sleep-near."
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Old 01-10-2014, 02:55 PM   #14
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Pronounced "Sleep-near."
Thanks, I may be able to handle that.
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