Question about 2002 Toyota RAV4

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Faulty fuel guage

Fuel guage reads empty all the time

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Check ground from pump to chassis

Posted on Apr 14, 2015

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Bad fuel sender unit, fuse

Posted on Apr 13, 2015

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Probly wire off float

Posted on Apr 13, 2015

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Related Questions:

1 Answer

Fuel guage sometimes read empty when there is gas in the tank?


Check that there are no holes in the float. If the fuel is getting into the float, it will give a false reading. Another thing is to check the ground on the float sensor. If it's not connected tightly, it will create a false reading too.

Mar 03, 2015 | 2002 Mitsubishi Lancer

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Fuel guage wont read


The wire to the sender in the fuel tank is shorted. If it was open or disconnected it would read full.

Feb 12, 2014 | 1989 Chevrolet C1500

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Fuel gage goes from full to emty all the time. when it first stated it only did it with quater tank or less.


Sounds as if the SENDING UNIT in the tank is faulty. They work by RESISTANCE, so when the contacts on the fuel guage sending unit in the tank get worn, it will send incorrect data. Typically it will say full when the actually IS full, then, when the tank is 3/4 full, it will say EMPTY, and then, as you use more fuel from the tank, the guage will go from what is REALLY in the tank, to empty, at different times.

Only solution is to remove the fuel tank, and replace the sending unit guage assembly.

Jun 11, 2011 | Oldsmobile Aurora Cars & Trucks

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Fuel guage reading was erratic. Replaced fuel pump and sensor..fuel guage then read a constant 1/4 tank lower than it actually was. Mechanic checked and said it was wired wrong...fuel guage then read...


Thanks for choosing FixYa and welcome. You may have a bad sending unit. It could also be a defective dash voltage regulator, lost ground at sending unit, break in the wire at the dash harness too. It can be anyone of these to be honest.

May 05, 2011 | 2001 Isuzu Rodeo

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Fuel guage & water guage are not working properly the fuel guage reads ful then will go to empty after you drive it for awile - the water guage only goes up to a quater


The gas tank sending unit has a float on it to register the amount of gas in the tank. The float is probably faulty which will cause erratic readings and is a fairly common issue with some GM units. Replacement of the sending unit should resolve that issue. As far as the coolant temperature gauge, it could be a faulty temperature sending unit or a thermostat that is stuck open or someone removed the thermostat. This will cause the engine to never reach operating temperature which in turn makes the engine run rich and can clog cat. converters and destroy some sensors.

May 08, 2010 | 2001 Chevrolet Venture

2 Answers

Fuel guage doesnt work. ive tracked down all i can. Anyone got any suggestions. 1983 grand marquis 302 fuel inj


Open circuit - gauge will read full.Grounded circuit - the gauge will read empty. If it reads empty all the time - then the wire that goes to the sender is broken and/or grounded somewhere along its length to the fuel tank. run a jumper wire from bottom of the fuse box in the spot, all the way to top of sending unit on tank. disconnect old wire at both ends, and then turn on the key and observe guage. if not this, check guage itself for sticking.

Apr 29, 2010 | 1983 Mercury Grand Marquis

1 Answer

Grand prix gas gauge not working


should be a grey wire going to the top of fuel tank connects to fuel guage / when the guage in the tank reads grounded it shows full , no ground it shows empty. if you ground that grey wire and the guage jumps to full then faulty guage if nothing maybe bad ground on the tank itself. the guages are a reostat like a tyco race car gun the more it moves the more it grounds .. good luck

Nov 19, 2009 | 2000 Pontiac Grand Prix

1 Answer

Fuel tank level is giving a wrong reading


or sending unit is worn or faulty

Oct 03, 2009 | 1999 Pontiac Sunfire

1 Answer

Gas guage not reading accurate


Your sending unit inside of the fuel tank is probably faulty. Unfortunately you have to drop the tank to change it.

Sep 08, 2009 | 2000 Chevrolet Silverado

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