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Is this normal for D4D engines????

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  • Is this normal for D4D engines????

    I have been under the bonnet fitting a few accessories (spot lights, UHF etc) the past few days and have just noticed something that I have a bit of a concern about...... there is a very light coloured/off white slight powdery build up on the injection lines where then screw into the Head/rocker cover. Is this common?? I cant say that it has just appeared, or if it has been there all along and I have just noticed it. Anyone else out there have this on their vehicle??

  • #2

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    • #3
      flyology, you had me curious so I've had a look at mine and yep, I've got it too. It's actually a bit worse on mine. I've done 37,000k's whether that's relevant or not?
      Mine's going in for the auto trans software upgrade on Friday to get rid of the horrid flat spot. I'll be trying to find someone in the service dept who's older than 12 to see if they can shed some light on it.
      Jim
      Prado 150 D4D GXL, Aftermarket Leather, BFG A/T's, Safari Snorkel, Nudge Bar, Uniden UHF, Weathershields

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      • #4
        I asked a mechanic at Toyota today and wasn't entirely sure but thought, "maybe they spray something on there at the factory to check for leaks"???

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        • #5
          Checked my engine out today also. Agree with barryswanson. Looks like something applied in the factory. In my case (12.000km) is is actually close to white. It it was some sort of leak it would be Diesel fuel coloured...

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          • #6
            Thanks guys, I was concerned old "Murphy" had snuck up behind me and ....!!!%%$@#!!! but it appears that there is nothing to worry about if all engine are the same. It would be interesting if someone from Toyota could give a definite answer, I might contact a few mechs I know......

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            • #7
              Jimbob1 I'm interested in the trans firmware upgrade for the flat spot problem . It's interesting that it's the trans firmware that's upgraded and not the engine ? Seeing it was back in Feb did it fix the problem ?
              Cheers
              Ross

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              • #8
                Originally posted by vk2ss55 View Post
                Jimbob1 I'm interested in the trans firmware upgrade for the flat spot problem . It's interesting that it's the trans firmware that's upgraded and not the engine ? Seeing it was back in Feb did it fix the problem ?
                Cheers
                Ross
                back in february? this thread was only started 6 days ago...
                2011 150series GXL

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                • #9
                  Originally posted by vk2ss55 View Post
                  Jimbob1 I'm interested in the trans firmware upgrade for the flat spot problem . It's interesting that it's the trans firmware that's upgraded and not the engine ? Seeing it was back in Feb did it fix the problem ?
                  Cheers
                  Ross
                  If you are refering to the 2400rpm flat spot then yes it did, read the latest here http://www.pradopoint.com/showthread...751#post310751
                  2010 150 Glacier White GXL D4D Auto

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