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Fuel sender lr3

Whie driving, the fuel gauge blinked. then, the digital reading of the fuel started to shoot down from 300 to 0, and fuel gauge stated empty. Car ran the whole time with no problem, but fuel gauge says empty tank???

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SOURCE: 05 LR3 w/ 96,000 miles.

Repair is a major job involving dropping the fuel tank, a messy and dirty and dangerous job. It will take you at least one full Saturday to do this job if everything goes right and you have the proper parts. My free advice to you is to fill your tank every 200 miles and forget about the fuel gauge.

Posted on Jul 29, 2011

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1 Answer

Gas gauge not reading gas and gas light stays on why


Hi,there is a float sensor in the fuel tank if its stuck with the float at the bottom of the tank the light will stay on,so to find out if the sender is falty just look at the fuel tank for two connectors undo the two wires and join them together the turn ignision on and see if the gage now runs up to full,if it gose to full then replace the sender in the tank.
hope was some help.

Mar 19, 2015 | 2005 Land Rover LR3

1 Answer

How to fix fuel guage


ZJ
what does it do now? stuck high, low. ,read off a bit. ? or what?
the tests are easy.
covered in the FSM 100% ( in a bad way)
see that here in chapter,called, "instrument panel"
chapter 8E.
page 5
as you can see the gauge is digital (CCD)
and the PCM (engine controller) sends fuel data to the gage via
the CDD data bus.
so the sender , may be telling the PCM wrong information.
I'd start there.
if your read page 5 it tells you the PCM sends, Empty stop data
to the gauge when the sender messes up.? DID YOURS?
does your low fuel warning lamp still work?
if not, that is clue 2 that the sender is BAD. if dead lamp.

that means sender bad, or wires TO it are bad, as in all cases, electrical..
In a real Jeep dealer, they use the DRB tool and read the sender
data directly and in 1 second, ahhh, it reads wrong.
then find the cause.
but us poor, sand crabs, we dont have DRB scanners.
we are not blessed.

but we are not helpless, not yet.
see the last chapter "wiring", see the fuel page. #
8w=20-3 (pdf 69)
see the sender
see the 2 wires,
see the colors. bingo.
what i do is, inplug the PCM (battery neg lug, disconneted)
the measure the resistance of the 2 wires.
DB-LG and BR-YL
PCM C2 -A4 and C1-c26

the sender is JUST a crude Rheostat (a wire wound var. resistor)
0 ohms (near is full) 100 (near is empty)]
if it reads infinity the line is bad. wires, connector all the way to the sender.

old data on older jeeps 86
73 ohms Empty 23 ohms 1/2 tank 10 ohms Full

1998
With float in up position, resistance should be 20 ohms. With float in down position, resistance should be 220 ohm
i dont have spec. on all years.
but it dont matter.
its near zero full
and near 100 to 200 empty
and infinity dead, they all wear out and go open circuit some day.
or the connector rusts 100:1 . over bad sender.
corrosion is no rare thing on cars.

1997 TJ
20 ohms - full
220 ohms - empty.

im scanning the internet finding others data.


96 GC

The same wires can be tested on the pump side to measure the resistance of the sending unit. A low resistance of 20-30 ohms would indicate a full tank and an empty tank should be around 260-300 ohms. If the sending unit resistance tests higher or open circuit the sending unit is bad.

Apr 28, 2014 | 1996 Jeep Grand Cherokee

1 Answer

Digital gas gauge reading incorrectly and inverted


sounds like a faulty sender unit or your just realy low on fuel before you spend any money on repairs try filling the tank up with fuel as if its been low for a long time the sender unit in the tank may be sticking the fuel will lube it and may start working again

Feb 22, 2014 | 2008 Honda Civic 1.8

1 Answer

05 LR3 w/ 96,000 miles. Fuel Gauge dropped to empty on a full tank and gas light came on. Fuel Gauge is not reading at all anymore, just reads as empty. What parts do I need to fix this? Sender...


Repair is a major job involving dropping the fuel tank, a messy and dirty and dangerous job. It will take you at least one full Saturday to do this job if everything goes right and you have the proper parts. My free advice to you is to fill your tank every 200 miles and forget about the fuel gauge.

Jul 29, 2011 | 2005 Land Rover LR3

2 Answers

Gas gauge started at full a few days later at half a tank the a few days later empty and its staying empty


Hi, if you have fuel in the tank and the gauge is still reading empty then you problem is going to be with the fuel sender in the top of the tank.

The problem you have got is that the tank is going to have to come out to fit the new sender unit.

Let me know how you get on or if you need further assistance ok

Oct 11, 2009 | Ford Ranger Cars & Trucks

1 Answer

Not working


take the wire off the fuel sender and ground it, the fuel gauge should read full. if it does, the sender or the float on the sender is bad. if it does not read full, there is a bad wire or connection between the fuel tank and gauge. if you take the sender out, and the float is bad, these are easily available, you can hook up the wire and another wire to ground the body of the sender and you should be able to work the arm up and down and the gauge should read.

Oct 02, 2009 | Ford F-100 Cars & Trucks

1 Answer

2005 LAND ROVER LR3 FUEL GAUGE WORKS SOMETIMES HAS FALSE READING


There is a service bulletin for replacement of both fuel sending units in the fuel tank. i have done many of these, 99% of the time it;s the problem.

Sep 30, 2009 | 2005 Land Rover LR3

2 Answers

Fuel gauge reads E when first started, jumps to F after awhile


It is more likely to be the fuel guage sender which is faulty.

Aug 21, 2009 | 2002 Audi A6

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Fuel gauge / range meter


this is an old post so not sure if problem has been resolved ?? but if not ? from your symptoms it sounds like the fuel tank sender unit is faulty and unfortunately not servicable but not too expensive to diy a new unit for a quick confirmation it is sender ? remove the wire from sender unit then scratch /hold to good earth whilst ignition is turned on and fuel guage is read by assistant ? if guage goes to full ? sender is faulty hope this helps?

Jul 25, 2008 | 2006 Hyundai Sonata

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