Question about 2007 Kia Sorento 4x4

2 Answers

Fuel gauge problem

After refueling the fuel gauge shows full,but driving about 30 miles the gauge will drop to 1/4 of a tank or will read E and the low fuel gauge light will come on,

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  • Anonymous Jul 20, 2008

    I have a 2004 Sorento - same problem....

  • amberdanddav Jul 29, 2008

    2004 kia sorento lx ~ same problem listed above. Sometime gage works sometime you drive 20 miles and its on E after filling all the way up. Sometimes you drive an hour per quarter of a tank.

  • maravery Sep 01, 2008

    my 2004 Kia Sorento has a gas gauge malfunction problem! Just filled the tank and drove less than 50 miles and it's showing nearly empty! Then it will reset and report about 1/2 full....NOT FUNNY! It's demoralizing in these horrible gas prices days! Does the warranty cover fixing this? It has only 65,701 miles on it! What about the so called 100,000 mile gaurantee?
    Martha A.

  • maryinfla13 Nov 12, 2008

    i have a 2005 kia sorento - same basic thing- it is 20g tank but is acting like 10. when the fuel light comes on it takes only that of 10 gallons before the pump shuts off. 180 miles later the lights on again.

  • heribertotc Jan 28, 2009

    I have the same problem with the gauge. When its full there's no problem, but when almost to half tank suddenly drops to empty.

  • Anonymous Apr 06, 2009

    can we all get together and have kia recall this problem since it seems that many have the same problem. Any ideas on how to begin a process like this? or maybe if somebody knows if the warranty of the 100,000 covers this?

  • Guest Mar 12, 2012

    Same issue on a 2003 Sorento I just bought :-( Filled up the tank, haven't drove 50 miles, and indicator dropped already at half tank! I spent half an hour looking everywhere under the car for a fuel leak!
    Does someone know if there is a known fix now?

  • Anonymous Mar 22, 2014

    i have full tank but my gauge does not read



2 Answers

The nature of the gauge is that it should behave with a linear taper between full and empty. If it works when full but then malfunctions as the level drops, the variable resistor in the sending unit which is housed along with the fuel pump in the gas tank is almost certainly at fault. The sending unit will have to be replaced to fix the problem. Expect this to be an expensive endeavor.

Posted on Aug 16, 2008

  • rproh
    rproh Apr 26, 2012

    What if the gauge doesnt move when you turn on the ignition? I hear this could be faulty electric wiring which is the cause of many fuel gauge issues. And it's alot cheaper to fix. May want to check this before wasting $ on sending unit first. Or get a diagnostic test which should pinpoint the problem.


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Actually if it is the fuel sending unit itself it is easy to repair. Just fold the rear passenger seat forward and you will see a square of carpet Velcro to the floor. lift that and wala there is your fuel pump/ sending unit. You can find the part on places like best price .com. rock auto, Parts geek, etc. Of course you can always go with your local auto parts store or dealer but the other places will save you some money and if you don't mind waiting a couple or so days it will be even cheaper. Most do offer next day or two day shipping for an extra charge. They sometimes get the part to you quicker than what they estimate. Simple job to remove and replace.

Posted on May 10, 2016



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Fuel gauge not working all the time.

This is a normal concern.
The instrument cluster uses 4 different operating modes to calculate the fuel level:
Anti-slosh (default mode)
Key OFF fueling
Key ON fueling
After a fuel fill up, the time for the fuel gauge to move from empty (E) to full (F) ranges from 2 seconds to 55 minutes depending on which operating mode the fuel gauge is in.
The default fuel gauge mode is called the anti-slosh mode. To prevent fuel gauge changes from fuel slosh (gauge instability due to changes in fuel sender readings caused by fuel moving around in the tank), the fuel gauge takes approximately 55 minutes to go from empty (E) to full (F).
The key OFF fueling mode (2 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The key must be in the OFF position throughout the entire refueling of the vehicle.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
The instrument cluster must receive a valid key ON fuel sender reading within 1 second of the key being put into the RUN position. The key ON sample readings are considered valid if the fuel sender reading is between 15 ohms ± 2 ohms and 160 ohms ± 4 ohms.
If these conditions are not met, the fuel gauge stays in the anti-slosh mode, which results in a slow to read full (F) event.
The key ON fueling mode (approximately 90 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The transmission is in PARK (P).
The key is in the RUN position.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
In key ON fueling mode, a 30-second timer activates after the transmission is put into the PARK (P) position (automatic transmissions). When the 30-second time has elapsed and at least 15% of the vehicle's fuel capacity has been added, the fuel gauge response time is 90 seconds to read from empty (E) to full (F). When the transmission is shifted out of PARK (P), the fuel gauge strategy reverts to the anti-slosh mode. The key on refueling mode prevents slow to read full events from happening if the customer refuels the vehicle with the key in the RUN position.
Recovery mode is incorporated into the instrument cluster strategy to recover from a missing fuel level input during a refueling event. Missing fuel level inputs result from intermittent opens in the fuel sender or its circuits. Recovery mode (empty [E] to full [F] approximately 20 minutes) is initiated when the following 2 conditions are met:
The instrument cluster is in the anti-slosh (default) mode.
The actual fuel level in the tank is greater than what is being displayed by the fuel gauge

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check the grounds on your fuel tank sending unit,must drop the tank to do this. with the tank down,remove the ground and look at your fuel gauge it should read full or empty,if it does not it may be a sending unit

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