Question about 2006 Isuzu Ascender

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Isuzu Ascender Fuel Filter

Does anyone know where the Isuzu Ascenders fuel filter is? I have talked to mechanics and even they cant find it

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  • Anonymous Aug 31, 2008

    followed the line all the way to the fuel rail. Never found a filter.

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The fuel filter is located with the fuel pump inside the gas tank

Posted on Oct 28, 2008

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The fuel filter is located under the truck just inside of the frame rail almost directly below the rear seat on the driver side .

Posted on Nov 15, 2008

  • Thomas Simones
    Thomas Simones Dec 09, 2013

    how can you tell if its the fuel filter, or how can i tell if the filter is bad

  • Brian Jones Dec 09, 2013

    it would really depend on what is happening, if there is no fuel being pulled from the tank ir is most likely not either filter and is either a fuse or the pump. If it is intermittent fuel delivery most likely not the fuse and you should start with the filter on the rail, there is another one in the tank as well if that does not solve the issue.


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All you have to do is follow the fuel line from the fuel tank to find it. most likely it is at the rear of the engine and that is why it is hard to spot.

Posted on May 18, 2008

  • gary watson May 15, 2013

    Fuel filter has been replaced


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ok no engine stated. cant help much if you can show VIN or engine name.
we can't guess the following
  1. engine
  2. if carb or EFI (1988 in usa they had carbs and EFI in 1 year)
  3. country, sorry, no country no joy, as varies by that.
why not just look, lets do this simple task.
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on older cars there are 2 EFI fuel lines, a loop its called.
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1 example of just 2 1988 engines.
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Most likely cause is the Rail Oil Presure Sensor as this controls the amount of fuel injected via the ECU .

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