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  • D4D - What's the risk

    I'm considering buying an '11 Prado that uses D4D injection. If you believe what you read there is a genuine risk of the injectors failing in the event of filling up with bad fuel especially in a 'remote' location.

    Obviously people write about it when it goes wrong, I'm guessing not so much when it doesn't! I'm wondering if i do purchase a vehicle using D4D how great is the risk? Is it the 1 in a million chance, is it reasonably common in vehicles out of town, or should i avoid it all together.

    Appreciate input in advance, especially from those operating regularly out of town

  • #2
    Can of worms.

    Carry a spare genuine fuel filter.
    If light goes on change it right away.
    If light flashes & alarm goes off drain water right away.
    That will help with all the usual precautions you could read about if you search on here.

    There is a risk, but they have improved the seats/sheets. Risk is pretty low, Maybe Take the extended warranty.......?
    I'd own one.

    Comment


    • #3
      A lot of guys r doing second filters as well as cheap insurance.

      Hutch- Prado 150 with some TJM Kit.
      [b]Rob[/b]

      [b]2016 Toyota Hilux SR5 D4D Auto Company Cruiser... [/b].
      [url=http://www.pradopoint.com/showthread.php?23866-Hutch-s-2012-150-GXL-V6-petrol-Auto]Hutch's 2012 Build up[/url]
      [SIGPIC][/SIGPIC]

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      • #4
        mali read through the diesel section here and in the 120s. There are a few 150s popping up with injector issues but whether that is fuel related or service related who knows? By 2011 the engine should have had the newer seats but no guarantee. Do the usual due diligence with the car but also ask for the injector feedback values to be read cold and given to you. Look for rougher than normal rattle or idle when cold and look for white smoke on cold start. Drive a few and make sure the one you are looking at is the same. In any case injectors are a consumable and at 120,000 - 160,000km they will probably need changing. Fuel system cleanliness is a must and changing the filters more often that Toyota suggests is good insurance. I change one or the other at each 10,000km service.

        I had a 120 D4D with early injectors and had a problem but that didn't stop me buying a 150 D4D.
        My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic

        Comment


        • #5
          Seriously why not just buy the petrol?

          Prado's are one of the very few 4wd's where the running costs are pretty close in the long run that either option is fine. Factor in the D4D injector issue and the petrol probably wins.
          2009 120 V6 Auto. 265/70/17 Goodyear Silent Armours. Bilsteins and Kings Springs.

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          • #6
            Originally posted by tassie tiger View Post
            Seriously why not just buy the petrol?

            Prado's are one of the very few 4wd's where the running costs are pretty close in the long run that either option is fine. Factor in the D4D injector issue and the petrol probably wins.
            The owners I've met all swear by the D4D.

            I met an installer of shelves etc. who bought cheap a 120 with the D4D engine, and he had the injectors replaced with new ones when he bought the vehicle. The injectors cost $250 each, and for a pro to fit them, perhaps $250 or so dollars.

            So ... for myself (I am going to upgrade from my bought new 17 year old Petrol GXL '97 90 series) I am not worried about the injectors. Because the replacement is not IMO very expensive.

            Comment


            • #7
              Yep, forum sponsor Baileys Diesel can supply blueprinted injectors for $1100 a set, 3-4 hours for a pro to replace them or anyone half handy with the spanners can swap them out in a day following Baileys DIY guide.

              Really the injectors and seals are the main issue with this engine. Injectors ever since diesels were invented have been a consumable part, so don't expect your injectors to last forever.

              Every 40,000km if the service is done correctly the injectors should be removed anyway, so if you change them at that service the only extra cost would be the injectors themselves.

              As for the V6 over the diesel, yes that's an option for some, however I did a desert trip a few years ago with a V6 (different brand) and the only reason he was able to complete the trip was because 3 of the diesel drivers on the trip carried all the extra fuel he needed as he physically couldn't carry what was needed for the trip.

              Cheers Andrew
              [COLOR="#FF0000"]So Long and Thanks for all the Fish![/COLOR]

              [url=http://www.4wdadventurers.com/showthread.php?3840-AJ-s-120-Prado]MY PRADO AND DIY CAMPER TRAILER[/url]

              [url=http://www.4wdadventurers.com/showthread.php?3975-AJ-s-79-series-Cruiser-Ute]MY HZJ79 Landcrusier[/url]


              [SIGPIC][/SIGPIC]

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              • #8
                negotiate the price 2k lower and change the injectors when they get out of tollerence or you get signs of leaking seats.
                2019 GXL, Bullbar, UHF, Redarc Brake Controller, Tow Bar, Secondary Fuel Filter

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                • #9
                  Originally posted by AJ120 View Post
                  Every 40,000km if the service is done correctly the injectors should be removed anyway, so if you change them at that service the only extra cost would be the injectors themselves.
                  Does the Toyota book actually say this? It seems a reasonable amount of work to get into them and remove them for checking on the D4D. Doing this every 1.5 years (lots of us do 25000kms plus a year) sounds like a lot of extra labour?
                  Diesel Prado with various things...

                  Comment


                  • #10
                    iantz I have been asking my dealer the same question. The service book actually says to check the clearances with feeler gauges but doesn't specify taking out the injectors. I was hoping that there was a link to removing the injectors, sadly not at least not that I could see. Most dealers do the 'audible test' which is BS but mine does do use feeler gauges though these are not standard type (feelers look like an L) and thus will fit. I had the same service done on the Rodeo a few months ago and the injectors came out. The mechanic's opinion is that it is easier to get the correct readings with the injectors gone but doable if you don't want to pay the extra few $. I don't know what a Toyota dealer thinks the extra few $ will be but no doubt I will find out in about 15,000km.

                    As for the cost I, from what I have heard using Bailey's injectors it is near enough $2k but add to that if you don't have a catch can and the inlet gets cleaned. Using genuine expect another $1,000 or so.
                    My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic

                    Comment


                    • #11
                      To check valve clearances unless you guess (audible) you have to remove the rocker cover, which means pulling the intercooler fuel lines etc. off. Once you have the rocker cover off then its maybe 10 minutes extra work to pull the injectors, so either way no big extra cost.

                      Cheers Andrew
                      [COLOR="#FF0000"]So Long and Thanks for all the Fish![/COLOR]

                      [url=http://www.4wdadventurers.com/showthread.php?3840-AJ-s-120-Prado]MY PRADO AND DIY CAMPER TRAILER[/url]

                      [url=http://www.4wdadventurers.com/showthread.php?3975-AJ-s-79-series-Cruiser-Ute]MY HZJ79 Landcrusier[/url]


                      [SIGPIC][/SIGPIC]

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                      • #12
                        The dealer will either do an audible test (Crap) or actually check the clearance and pull the injectors to replace the seals on the 120.
                        if they do is is easy enough to tell as they will charge you for the seals, washers, gasket etc on your 80k or 120k service invoice if they do.
                        It is anywhere from 2.5-4 hours of labour that the dealer will try to charge you for this.

                        If you have had a good dealer, this will be done at 80k and 120K. Hence why the service cost is a lot more expensive on the D4D at those points due to the extra labour and parts.

                        Cheers
                        Robert
                        gumboot
                        Avid PP Poster!
                        Last edited by gumboot; 29-04-2014, 03:45 PM.
                        [B]Robert
                        [URL="http://www.pradopoint.com/showthread.php?32134-Gumboot-s-120-D4D-GXL"]2007 D4D GXL Prado[/URL][/B]
                        [I]"The true measure of a man is how he treats someone who can do him absolutely no good."[/I]
                        [SIGPIC][/SIGPIC]

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                        • #13
                          So 2.5 to 4 hours labour from Toyota I'm guessing is anywhere from $300 up right? Even adding just $200 labour to every 40,000km service just to check the injectors would piss me off. The more complex these diesel engines get, the more I want to avoid them....
                          Diesel Prado with various things...

                          Comment


                          • #14
                            Originally posted by iantz View Post
                            So 2.5 to 4 hours labour from Toyota I'm guessing is anywhere from $300 up right? Even adding just $200 labour to every 40,000km service just to check the injectors would piss me off. The more complex these diesel engines get, the more I want to avoid them....
                            Its not to check the Injectors, its to check the valve clearance. But if in doubt its the time to swap out the Injectors for a new set as all the work is already done.

                            But yes I agree, all new vehicles are becoming more and more complex. I was only thinking yesterday that If Toyota had of made a 4ltr V6 turbo Diesel with the 1KZ technology it would have been brilliant beyond belief I reckon.

                            Cheers Andrew
                            [COLOR="#FF0000"]So Long and Thanks for all the Fish![/COLOR]

                            [url=http://www.4wdadventurers.com/showthread.php?3840-AJ-s-120-Prado]MY PRADO AND DIY CAMPER TRAILER[/url]

                            [url=http://www.4wdadventurers.com/showthread.php?3975-AJ-s-79-series-Cruiser-Ute]MY HZJ79 Landcrusier[/url]


                            [SIGPIC][/SIGPIC]

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                            • #15
                              Just as a matter of interest, my mate took his 2008 GXL update model in for
                              a injector test before the extended warranty ran out. The tech looked up the
                              seals and the injector types for his vehicle, his 2008 model has the new ceramic
                              seals and injectors fitted.

                              Baileys also agreed that according to Toyota's records it has the latest injector
                              type fitted.

                              Now don't shoot the messenger, I'm just repeating what he has been told!

                              Cheers,
                              Leigh
                              HKB Electronics, manufacturer of the Alternator Voltage Booster, Silver 2008 D4D,Lifted,Underbody protection, Alternator Voltage Booster, Tiger Z winch, Lightforce DL, Air Horns, Tanami Drawers, Drop down fridge slide, Outback cargo barriers, Rotronics dual Battery system, Polaris GPS, HF/UHF/VHF, Radio speaker combiner, Long ranger water tank, Diff breathers, Inverter, Snorkel and others

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