Who has had Engine Failure in 120 series

[chillibin Lurker Find all posts View Profile Close chillibin]

I would very much like to get a list of owners who have had an engine failure as a result of injector seat failure causing blow-by and hence blocking pickup screen.
Really only interested in Australia only.

If you could possibly just list below like i have would be fantastic

Vehicle-2006 D4D Prado
Klms when engine failed -130,000
Reason for failure-Blocked oil pick up screen
Did Toyota cover under warranty or cover any costs-NO
Was servicing carried out by Toyota prior to failure-YES

Also if anyone has any information that proves this is a major problem in Australia if you can PM me it would be greatly appreciated.

Hi there, talking from Auck NZ. Have joined forum to see if any have sim issues. Have 2004 3L Prado Diesel since new now at 150,000km, regular service by Toyota, slight noise in engine, thought to be normal, then got very noticable. Told broken ring damaged piston etc.. looking at engine overhall and many thousands. Cant fathom how. Do not off road as such, but launch small boat on occasion on sand beach. Go easy and warm up car. Unbelievable and very disappointing.

[cfryback Find all posts View Profile Close cfryback]

Then you have something to argue in court with.

80k KM Service, as mentioned they have to pull the injectors to do the service properly. It even states that the seals and o-rings must be replaced.

The other catch is, and disappointing from TMC is that the injectors themselves should be changed (as some have suggested) at 125k KM.

I've been though the same thing, yes disappointing, have now just started to pay off all the other bills (ya' know, power, gas, rates, phone), as funds were elsewhere.

The only thing that may help me is that mine was actually brought to Toyota for 80k KM service, other than that looks like it has been serviced by a less-than-knowledgeable shop. Kept suggesting that the "white smoke" is a glow plug issue.

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

chilli is your engine the D4D or the 1kz? If the latter probably a glowplug failure. If you guys got the D4D in 2004 then you would definately have the early injectors and maybe even earlier than we received so it could be an injector failure. Was the engine crazy loud and knocking when cold before it failed?

[cfryback Find all posts View Profile Close cfryback]

I thought that model year '06 was the introduction of the 1KD-FTV (D-4D) engine - a mate has a -'06 Hilux that was caught before it went bang....just!

[mgreen18 Junior Member Find all posts View Profile Close mgreen18]

hmmmm
When should I start freaking out about my D4D going bang.......
2009, 120, 60,000km
What's the best way to prevent it happening or its just a matter of time and which lemon you got off the tree ?

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

mgreen there are a couple of threads referenced in page one of this thread, suggest you have a read there too. Short answer is get the injector feedback values checked with the engine cold. Next oil change check the oil suction strainer for build up (which will indicate that the injector seats are leaking). These are the two main issues. Fit a catch can to filter out the oil that is being recirculated into the inlet system.

[peril Senior Member Find all posts View Profile Close peril]

So, I better ask my service dealer if he changed the injector seals last service? (80,000km) Would this have been detailed in the service receipt? (I have thrown it away)

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

peril I doubt they have been changed. As mentioned elsewhere in these threads the dealers are able to check clearances without removing the injectors. That has been confirmed by a couple of PPers including Rick and also backed up by my Service guy. I am not sure when the coated seals were implemented but Roo has mentioned some early 150s still with the old uncoated seals and also some 120s with the newer seals. Strainer check and injector feedback check are all you can do without pulling injectors. I know that the injectors get really noisy when they are dying but mine was not and two injectors were well out of whack. I could not tell the difference with the old injectors cold to the new injectors cold. I definately made an effort to listen the morning we took it in and then 3 days later when we picked it up with the new bits.

[chillibin Lurker Find all posts View Profile Close chillibin]

Hi all. have 2004 Prado 3L diesel. Bought 12, 000km, now 150, 000 with engine failure. Ring broken and piston etc damage. 9k to fix. Always serviced with Toyota. Easy driver. Spoke to Toyota re injectors issues and they advised not this model. Can anyone confirm this for me please. most grateful. cheers Carolyn

[retroenduro Member Find all posts View Profile Close retroenduro]

yep you have the KZTE engine chilibin, not the D4D engine in which the injectors go. Sounds like a glow plug let go. when did you last have your glo plugs changed?

[peril Senior Member Find all posts View Profile Close peril]

Mm, I just found the work order for that service, thank goodness for my wife who saves 'everything'.

'Inspected valve clearance'

'Inspected diesel smoke'.

Now, how do you get a service centre to replace these seals when it doesn't 'specifically' say to do that?

It does list an 'Engine Flush' - with anti sludge and residue agent. Not sure if that is the oil or coolant?

[baggs71 Inactive member. Find all posts View Profile Close baggs71]

yep you have the KZTE engine chilibin, not the D4D engine in which the injectors go. Sounds like a glow plug let go. when did you last have your glo plugs changed?

Yep my glowplug let go too...not pretty....lots of $ k
I entrusted my work with josh from DC Injection....they are not backyarders so you pay a premium price but josh is bloody pedantic checking all his mechanics work etc on completion....hope none of you ever need him but he is good.

[chillibin Lurker Find all posts View Profile Close chillibin]

thanks retroenduro. Light has always worked and I wait for it to go out. Dad has diesels so knew. I am guessing this is what you mean after a google. Can it fail and appear to be working? Will need to check service records as doesnt ring a bell. Would Toyota check this as part of service

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

Peril it is written up somewhere here that the official Toyota procedure to check valve clearances involves removing the injectors. That means replacing the injector seats and seals. However it is possible to do the clearance check with the injectors in position. Using my 120 as an example the 40k service did not include the clearance check (I was ignorant of the need to do this with the motor stone old). Due to my convenience I changed service locations and both the 80k and 120k services were done with the car left overnight to get cold. Neither though had the injectors out. I asked once I was educated on this by Roo. The seats were changed when the injectors were replaced shortly after the 130k service. For the record I had to INSIST that the injector values be checked and in the end these were done warm even though the car had been dropped off at around 08:00 in the morning and the test done at about 18:00. I had no symptoms, no smoke on start up, no knocking noise, no excess fuel consumption. I just wanted a baseline reading before the extended warranty finished. Anyway injectors checked warm, NG, checked cold, NFG, new injectors fitted a week later.

Engine flush would be oil system and if used according to instructions will help purge the sticky gunk around the engine and maybe even clean the intake screen. Still should be checked regularly. My regime for the 150 will be valve clearance checks as per manual and screen checks. I bought the seeing eye dog that fits in the sump hole and supply that to the service place. Seats are coated now but RickNZ has seen some of these show signs of leakage. Very 40k I will also ask for injector feedback values to be checked. No doubt I will be paying more but I will keep this Prado 6 or 7 years like the last two.

[Bushbasher Out of control poster! Find all posts View Profile Close Bushbasher]

hmmmm
When should I start freaking out about my D4D going bang.......
2009, 120, 60,000km
What's the best way to prevent it happening or its just a matter of time and which lemon you got off the tree ?

My 2009 120 went bang last year at 73,000km. No warning signs prior to the engine shutting down. No rattle or smoke until I tried to restart. Some say you will have a louder rattle on start-up and/or blowing white smoke. Mine never did this. You can get injector values checked by your dealer or other trusty mechanic with diagnostic tester. The values should be - 3 to + 3 or somewhere in between for each injector. Others here on the forum recommend having the values checked every 40,000. I have my own tester and do it monthly. Toyota may charge for the service, it only takes a couple of minutes and should normally be done on a cold engine.