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2010 manual diesel misfire issue

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  • 2010 manual diesel misfire issue

    Hi guys/girls

    I have a 2010 gx manual d4d with 145000 kms.
    The last few months I have been having a misfire issue when the car has been sitting on a flat (No hills etc) freeway at a set speed either on cruise control (factory fitted) or myself holding speed limit and when approaching a spot where the car has a load (e.g start of a hill or about to accelerate to overtake) the car will have a 0.5 second misfire and then will resume accelerating.
    The pedal isn't flat to the floor just to maintain speed.
    Note: I have now got onto the issue because the mrs asked "what was that?" When it happened recently.

    This will happen on a 80, 100, 110km/hr road normally between 1800-2300 rpm so it isn't a set rpm issue.
    When I am stopping/starting or on the tracks the issue doesn't come about.

    I have had the car at a diesel specialist in SE Melbourne for the last 2 days and they thought it was a suction control valve and it apparently helped but didn't fix the issue.
    They have tried to put it on a dyno but found the traction control system holding them out.
    They have been road testing and road testing and the misfire I explained to them has happened while they have been driving it but because it happens so quick they have said it will require time to go through the data and they think it's a electrical issue.

    Note: My regular mechanic puts the scantool on to check injectors each time its serviced (10000 km or before a big trip).

    So I want to know what is wrong and the solution before anything major happens and wondering if anyone else has come across this very annoying and unique problem?

    Thanks Nathan

  • #2
    have a look here - http://www.pradopoint.com.au/showthr...uise&styleid=3

    Comment


    • #3
      Hi Nathan
      Have you solved your problem?
      I have a 2011 GX Manual (ex mine hire car). After purchase in 2014, at about 50000 kms, it developed a similar problem that you described. A random "miss or hesitation" at normal road speeds not necessarily while under acceleration. I had various checks done without fixing it. I changed the fuel filter between the tanks and the problem disappeared. I now make sure the filter is changed every 15Ks / 12months. Now up to 110Ks and is running well - touch wood!

      Comment


      • #4
        You may need to get an update for your ECU (Engine computer) I had the same problem and a re-flash fixed it up.

        Comment


        • #5
          Thanks Nebulous - I will talk to the local dealer about the ECU update

          Comment

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