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  1. #1

    any common problems with 1kz-te diesel engine?

    Hi guys new to the forum, hope this is in the right section, I'm looking at buying a 2005 Prado 120 series with 3.0l turbo deisel 1KZ-te engine 140,000km..... was just chasing any info i can find on this engine, common faults, reliability ect...? cheers!

  2. #2
    Admin #3! Matty & Loz's Avatar
    Join Date
    Mar 2009
    Adelaide, SA / Gulf of Mexico
    Blog Entries
    have a search through the 120 diesel section most of the issues that varyious members have had will already be listed...
    2007 D4D 120 GXL Automatic - BLACK

  3. #3
    I bought my 2003 120 1KZ-TE at 130000ks and it has now done 235000ks without an ounce of trouble except for a weep in the radiator. I treat it kindly and change the oil every 5000ks and the filter at 10000ks, I've towed a caravan to Perth and back as well as towing the van right up the beach on Fraser Island a couple of times. The auto box does the job very nicely and I expect to get many more trouble free ks out of it.

    Go for it,

  4. #4
    Junior Member
    Join Date
    Feb 2011
    Melbourne, VIC
    I bought mine with 245,000ks on the clock and have now done 280,000 with no dramas aside from again a weepy rad. Ive done a bit of research and the only thing i have come up with so far is make sure you change the glow plugs every 100k. Also keep the oil clean. Change it every 5000k and give it a good flush. these engines are good for 500k if they are looked after. The most common way of them dying is when they sludge and coke up and starve themselves of oil due to lack of care - same as most jap oil burners.

    Its a basic engine hence why i wanted it. The D4D's seem far too fussy and fragile. Also expensive and complex to fix.

  5. #5
    Most of the problems are associated to the D4D after late 2006 I believe
    2010 150 Glacier White GXL D4D Auto

  6. #6
    Cool, thanks heaps for the info guys, sounds like the 1kz-te is really reliable, although less power than the D4D, i worry about the sensitive injectors on the common rail D4D still thinking and looking around though. Cheers!

  7. #7
    I have just lost my 2005 Prado motor on 225000km, cylinder head cracked between 2 pistons. The complete engine is scraped with the turbo. If you searched you will found that a cracked cylinder head is common.

  8. #8
    Out of control poster! Anth120playdo's Avatar
    Join Date
    Jun 2012
    Melb this minute elsewhere in OZ the next
    Quote Originally Posted by Dirt Road View Post
    I have just lost my 2005 Prado motor on 225000km, cylinder head cracked between 2 pistons. The complete engine is scraped with the turbo. If you searched you will found that a cracked cylinder head is common.
    Percentage wise probably not that common really?
    Cheers, Anth - Technician
    Prado 1kd-ftv D4d specialist

    SYDNEY trip in April
    FRESH Injectors @ 120,000k, ONLY use NEW DENSO & pipes
    NO CHIPS NO TUNE UPS - piston crack risk it - feeling lucky?

  9. #9
    My 120 is in at the moment for a new head.Toyota sevice manager said "it's not an uncommon problem"
    04 GXL 3L TD Toyota Bullbar 2"TJM lift TJM OX hyd winch Blackwidow draws 40LT Engel dual batteries Mickey Thompson ATZ's Steinbauer P Box Airtek snorkel (colour coded)
    Its now gone sad to say but enjoying the replacement LC200 with a BIG list of bits to add.Lifted pre rego

  10. #10
    So the 1kzte doesn't suffer from the the injector/seal problems of the D4D ?????? sorry if I'm in the wrong place to ask or if it has been asked before, I'm new and this is my first post Just need to know before I commit to buying 2004 intercooled TD Prado for the mrs..

  11. #11
    Out of control poster! mjrandom's Avatar
    Join Date
    Jan 2008
    The 1kz isn't the same arrangement. You need to remember that in any diesel injectors are a consumable but the injectors are much cheaper on the 1kz. I don't know what the injector seals are made of but I haven't heard of the same issue.
    Bluestorm mafia and maybe one or two other vices.
    My 150:

  12. #12
    Hi mate I bought mine 05 prado when it 50 thou on the clock I have never had problem with it and I have giving it one hell of a life I don't muck around so basically I drive the ass of it and she just keeps on going but in saying that I am very particular bout my servicing every 5k. The old girls can handle a fair bit. Mine now has done just Over 200k and I'm still on the original injectors glow plugs clutch and brakes but they are due to changed very shortly along with the injectors. So I can not fault it
    "wounds heal but scars last for ever"

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