Question about 1988 Mazda B2200

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My fuel gauge works when the fuel level is a little over half full. When I fill the tank the gauge regesters at empty until I use up about half of the fuel. What's wrong and what can I do?

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You will find that the fuel sender unit has either rusted in the tank or the copper wires have perished, so the slide cannot pass over them smoothly, you will need to replace the sender unit, remember to use a new gasket. remember we are here to help as best we can, safe driving.

Posted on Jun 01, 2010

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You most likely have a fungus in your fuel tank. This causes the symptoms you describe. You may be able to purchase a fuel additive that will solve the problem at your dealership. J.

Posted on Jun 01, 2010

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Posted on Jan 02, 2017

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2 Answers

The petrol gauge, from empty to quarter how much litres is it? And from quorter to half? From half to three quarter? Lastly from three quarter to full?


how would we even begin to guess at this . having no idea as to a make model year etc,etc . try calling a local dealer .

Jul 16, 2016 | Cars & Trucks

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How to adjust gas gauge to read right not reading way over filled like it does now. When 1997 chev 350 vortec truck gauge is at 1 st red mark close to empty, better not past gas station ! ! !


the fuel level sender is inside the fuel tank, part of the fuel pump assembly. did you or was the tank replaced before??they may have bent the float arm on reassembly . you can buy the sender from your parts supply store .you will have to drop the tank to do this it clips onto the side of the pump assembly. run it almost dry first as the tank is big n very heavy even 1/4 full. you can try to bend the old arm

but its very hard on the "sender" as for level indicator full to empty, think of the shape of the tank narrow at top to widest point in the middle (full to half) wide middle to narrow bottom( half to empty)

its just an overall volume thing

Mar 07, 2015 | 1997 Chevrolet C1500

2 Answers

Town and Country Van running out of gas and guage says half a tank what could be the problem?


If your fuel gauge is showing you in accurate readings this is normal to all vehicles that are not used to fill-up gas full regularly but sometimes the cause of the inacuracy is due to faulty float valve in the gas tank you need to replace it

May 09, 2014 | 2005 Chrysler Town & Country

1 Answer

Dash gas gauge stops showing proper gas level once it hits half a tank. Then gauge will fluctuate between empty (light will come on), full and anywhere in between but seems fine from full tank to half


If the trouble with the gauge started after you worked on it then you likely damaged or created a restriction to the movement of the sending unit. You will have to remove the tank and double-check your work.

Mar 01, 2013 | 2000 Buick LeSabre

1 Answer

I just filled up my tank and now the light is on and the tank shows empty?


{: ) Your fuel level sensor could be intermittently reading high resistance and may need replacement. An intermittent reading can happen at any level (say 1/4, 1/2, 3/4) and will suddenly give you an empty reading and fuel light, sometimes an SES light may follow. At any rate, this kind of symptoms still recommends replacement of the fuel level sensor.
You can observe it by yourself. Does it read normal on lets say half full but will read empty when you can calculate that you still have 1/4 remaining on your tank. In your case you've just filled it full, and it's no different once the fuel level sensor start getting erratic readings.
Although it may take time, you can wait until the fuel level stabilizes to a certain lower level where you think your gauge was reading normally before. You can also do some stop and go, forward and reverse, to slosh the level arm to a a more readable position. Check if you can get clearer results out of this trick.
A scan tool is a better tool to determine quickly the condition of the sensor and may tell also if there are other codes that is related to your problem.

Jul 16, 2011 | 2006 Chevrolet Trailblazer

1 Answer

My fuel gauge isnt working, it sayed over Full untill i hit half a tank then showed on F then 1/2 a tank was actually Empty. what could be wrong?


The fuel sending unit has a rhetrostat its a variable resitor ..As fuel is added the fuel lever mover along the rhetrostat and gives resitor signal to the fuel guage, the fuel gauge interpets this as level indicators to show on the gas tank.

Apr 26, 2011 | 1989 Jeep Wrangler

2 Answers

How can i get to the fuel tank send unit only reads half full


well if you have it an empty fuel light came on to your dash, then you have travelled and just consumed the whole entire reserved gas in your tank, so when you are filling it up again, it will fill-up first the reservoir for your reserved gas then if it reach the minimum level of gas in your tank, then the fuel sensor unit will tell you now the exact amount of gas level on your gauge just keep filling it up (gas), DO not Press the entire trigger of the pump, just press it half way and moderate while filling -up gas so wont stop clicking and you thought that you have your tank full already but it was not.

Jan 22, 2011 | 2000 Mercedes-Benz S-Class

1 Answer

When the fuel gauge reaches half or less, the check engine light comes on and stays on until tank is re-filled. Also when filling the tank, the station gas pump shuts off about 5 gallons before tank is...


Hi! You definitely have a problem on the fuel float thats why the check engine light is coming out. Please replace the fuel float and you'll be good. HOpe this helps and have a good one!

Jul 24, 2010 | 2001 Isuzu Rodeo

3 Answers

Fuel gauge stops working at half empty and will not let you fill up gas tank at full outlet speed from gas pump


you have 2 recalls
pcm update fuel pump replacement
fuel pump module replacement and pcm software

May 05, 2010 | 2006 Chrysler Pacifica

1 Answer

Fuel gauge faulty / gives weird levels of fuel


The fuel level sensor is bad. The tank will have to be taken down to replace the level sensor. There is little fingers on the resistor that wear down and loose contact causing the gage to read incorrectly.

Dec 12, 2009 | 1999 Chevrolet Malibu

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