3000 gasser fuel guage

Royse · Jan 14, 2017

I don't really expect this gauge to be 100% accurate, but
sometimes it reads empty when it is over half full.
When it is completely full it might read full or it might read
3/4 full. I filled it today and it still reads less then 1/4.
I'm assuming a bad sender unit but haven't done any testing
to verify that assumption. Any experienced opinions?
To be clear, the gauge and the sender do work, just not accurately.

47fivewindow · Jan 14, 2017

When the tank is near empty get an ohm meter and put it on about a 100 ohm
scale. Hook the float and read it to ground as you move it through its range.
If it is not a smooth transition top to bottom the unit is bad. Also look for
hanging or float issues. The last one I remember went from 0 to 37 ohms, maybe
someone here knows the values for yours.

Hobo,NC · Jan 15, 2017

(quoted from post at 10:47:59 01/15/17) I don't really expect this gauge to be 100% accurate, but
sometimes it reads empty when it is over half full.
When it is completely full it might read full or it might read
3/4 full. I filled it today and it still reads less then 1/4.
I'm assuming a bad sender unit but haven't done any testing
to verify that assumption. Any experienced opinions?
To be clear, the gauge and the sender do work, just not accurately.

Search for Keywords: Gauge (ar stabilizer)
Search for Author: Hobo,NC
Forum: Ford

Look for topics on fuel gauge issues. It could be as simple as a heavy float. I am not sure what float is used on a 3000 ford used a brass float on many applications and they are know to get a hole in them were they attach to the sender arm. Ford used that type of float on cars trucks etc well into the 90's.

Read up on how it operates its basically a dead short 12V to ground that uses a voltage stabilizer It achieves a average of 5V by switching the power on/off. The voltage stabilizer must have a good ground its grounded at the screw that attaches it to the cluster so the cluster must have a ground ground also :wink:

Its one of those adventures in life that will beat you up if you do not understand how it works. Its a Ford thing for sure I paid my dues :lol: Educate yourself on its operation I don't think you will have a problem with it. How it works can be found in Ford factory manuals (cars and trucks) maybe you did not give them all away

Royse · Jan 15, 2017

(quoted from post at 01:20:37 01/15/17) When the tank is near empty get an ohm meter and put it on about a 100 ohm
scale. Hook the float and read it to ground as you move it through its range.
If it is not a smooth transition top to bottom the unit is bad. Also look for
hanging or float issues. The last one I remember went from 0 to 37 ohms, maybe
someone here knows the values for yours.

I can check that out easy enough. As cold as it is, I'll probably
check it with a paint stick until spring. Have to do that with most
all of my other tractors so it's not too big of a deal to me.
Thanks!

Royse · Jan 15, 2017

(quoted from post at 10:22:28 01/15/17)

(quoted from post at 10:47:59 01/15/17) I don't really expect this gauge to be 100% accurate, but
sometimes it reads empty when it is over half full.
When it is completely full it might read full or it might read
3/4 full. I filled it today and it still reads less then 1/4.
I'm assuming a bad sender unit but haven't done any testing
to verify that assumption. Any experienced opinions?
To be clear, the gauge and the sender do work, just not accurately.

Click to expand...

Search for Keywords: Gauge (ar stabilizer)
Search for Author: Hobo,NC
Forum: Ford

Look for topics on fuel gauge issues. It could be as simple as a heavy float. I am not sure what float is used on a 3000 ford used a brass float on many applications and they are know to get a hole in them were they attach to the sender arm. Ford used that type of float on cars trucks etc well into the 90's.

Read up on how it operates its basically a dead short 12V to ground that uses a voltage stabilizer It achieves a average of 5V by switching the power on/off. The voltage stabilizer must have a good ground its grounded at the screw that attaches it to the cluster so the cluster must have a ground ground also :wink:

Its one of those adventures in life that will beat you up if you do not understand how it works. Its a Ford thing for sure I paid my dues :lol: Educate yourself on its operation I don't think you will have a problem with it. How it works can be found in Ford factory manuals (cars and trucks) maybe you did not give them all away

Thanks Hobo. Actually that manual I sent you was the last Ford
factory auto manual I had. I'm not doing that work any longer.
Factory manuals are simply the best there is in my opinion so
I was happy to get it to someone who would put it to use.

The ground is a good possibility since it works intermittently.
Thanks for that reminder.
I'm not thinking it would be a leak in the float.
If it were, wouldn't it fill and stay at the empty mark?

3000 gasser fuel guage

Royse

Well-known Member

47fivewindow

Well-known Member

Hobo,NC

Well-known Member

Royse

Well-known Member

Royse

Well-known Member

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