DODGY INJECTORS

[Ggn25]

As far as the ecu flash goes. There are calibration id's that can be updated. The non water cooled egr is euro 3 spec. Not flashable. On 06 can be flashed but only if the current ecu cal I'd is correct, it may have been done elsewhere by someone else? The it2 or gts machine will let you choose a cal I'd and then let you know if it is possible. It's like firmware updating any electronic gadget or computer . As far so as costing here is a firsthand experience. Yes you just connect a computer and tell it to flash the ecu then 15mins later it's done. What you don't realize is the extra accessories that stop this from going can cause a fried ecu. Phone handsfree kits , dual batteries, uhf's . Anything connect to accessory power that can cause a noise in the electric circuit can interupt the flash rendering the ecu stuffed. So think of the time needed to disconnect all of that and then start the flash . .7 of an hour is standard warranty rate. Any extras the owner should wear.

Just to throw another twist into the thread, the injectors have a feed back volume that can be tested hot and cold.
I just got mine back from the Toyota dicks this morning (my wallet $150 lighter) after leaving it overnight for the injector feed back test.
Have not seen this mentioned in any thread here yet, but they gave me a print out for 2 sets of readings...hot and cold.
Mine is....COLD
Injector # 1 = 0.9
# 2 = 0.3
# 3 = 1.7
# 4 = -3.8 (problem child)


HOT
Injector # 1 = -0.4
# 2 = 0.7
# 3 = -0.8
# 4 = -0.2
SPEC IS -3 to 3

So good news really, as when hot they are near perfect. Only when cold are they out of spec, and only # 4 which explains the filling-loosening rattle when cold.
I can live with that scenario for a while, I don't want to replace individual injectors as I would have to use the old style.
After a year or 2, if they have gotten worse (as the Toyota guy says they will) then I will replace all 4 with the latest type.

The really mystifying part is that I asked them to do the pilot injection reflash (which another Toyota dealer tried to do but could not get the car to accept it) and failed also!! The car would not accept the reflash and they have no idea why. They checked the build date (oct 06) and this car can supposedly be reflashed. They said being close to the change-over date (aug 06) maybe it can't be, but sounds like BS to me, it has the EGR cooler and their spare parts dept. looked up the injectors for me and it takes the same as later vehicles.

[SR5 2NV]

I just spoke to a toyota dealership and apparently there is a new diesel injector cleaning system that is being trialed at sydney city toyota. they basically plug the system to the car and it cleans all the injectors without the need to pull them out. it is meant to eliminate the knocking and rattling sounds, the vehicles they have trialed it on seem to run a lot better. i will wait and see how this goes in a couple of weeks if they decide to implement it in their dealership. toyota doesnt know what the price is going to be.

Has anyone heard of this being done??

[OFFTRAK]

2NV, Johnny5x mentions the injector clean he got from Toyota on the previous page of this thread.

Just booked in my ute with the local dealer to have the cold test done again. I got the figures from my last test confirmed (2.0, 0.4, 0.9, 3.8.) and definitely something wrong there. Wonder what they will be at this time around.

[bloke&tackle]

Thanks for that Ggn25, sounds fair but no accessories in my bus it's as bog standard as the day it left Thailand.
I'm not going to pursue it any further until the mythical change-over injectors become available, which Denso Australia are in the process of providing.

[SR5 2NV]

bloke&tackle

I'm not going to pursue it any further until the mythical change-over injectors become available, which Denso Australia are in the process of providing.

how did you get them to provide new injectors.

[bloke&tackle]

Sorry mate, what I meant was that Denso are in the process of setting up a change-over injector service.
I have not been given or bought any, they aren't available just yet.
There are some brand new cheap genuine injectors available if you hunt around, but you have to give your old ones back, which get sent back to Denso so they can build up a stock to use as change-over units.
Presumably the new cheap ones available at present are being supplied cheap by Denso to a select few retailers, as my local diesel fuel injection guy is a Denso agent and nearly choked when I told him the price I can get them for.

[djyates]

Left ute overnight last week to test cold for rattle, 4/08 model with 95,000klm & 2 weeks warranty left. Dealer said was in spec & he had heard worse but would submit to Toyota for assesment. Following day a box of 4 injectors was delivered to dealer & they are going in today & tomorrow (only spare time left at dealer). One very happy Hilux owner .

[lip]

After reading this thread(and others similar) i took my 2006 8500k SR into toyota to get a cold start injector check. The main reason i did this was because of the load denotation of the engine between 1000 and 2000 revs when cold. I dont know if ud call it a rattle or what but its a worrying sound. Anyway so toyota told me i had 2 injectors out of spec and they can put in for an out of warranty claim to get em changed over. Even though they assurred me most ppl get atleast 50% of the cost covered by toyota my claim was rejected and i was on my own. So i took it to a specialist diesel injection place to get it repaired because it was cheaper...

4 injectors @ $575 each (plus gst), new pipes, new filter and labour came to just under 3000 incuding gst.

Ill also add that because my hilux is pre august 2006 it could not be reflashed (the computer) to change the pilot injection or whatever.

Its now about a month since the work was done and there is absolutely no difference with the new injectors. Still noisy when cold, fuel economy is the same along with the power. The guys at the diesel shop assured me that the "denotation" between 1000 - 2000 reves (roughly) is normal and only be concerned it if is noise outside that range.

Im left wondering if the cold noise is hurting my engine? why does it go away when the engine warms? what i got for $3000? would the reflash have made a big difference? Are there any other options out there to solve the problem?

cheers

[oldrev]

mate
ive been through this crap
the best advise i could give is get in the thing and drive the crap outta it for half an hour and see where you go from there
ken

[Noidea]

Im thinking about getting mine tested by toyota cause when cold mine rattles like crazy and has been slowly getting worse and was just wondering. Do the guys with chips take them out before handing it over to toyota for the test??

Ive got a VMN chip which plugs into the injectors themselves (but doesnt increase the fuel rail pressure itself) but was curious if this will change the result in the test?

Its a 12/07 d4d sr5 model with 96k on the clock and thought ide give it a go trying to get them replaced under warranty. How long are our hilux warranties anyway? Obviously changing injectors is a costly process so to anyone who has done it, is it worth it? Has the rattle gone? Fuel consumption and power, are they better with the new injectors?

Also has anyone else heard of the cleaning process that sr5 2NV was talking about a few posts up?

What are your thoughts??

Josh

[Alby]

Warranty is 3 years 100,000k. I had my injectors replaced right on the 3 year mark under warranty. Had to do the Toyota reflash and re- test process and then they send off results to Toyota Aust for a warranty approval claim. I took my chip out before I gave it to them and disconnected the battery to clear the computer............did not want to give them any potential excuses.
2 of my injectors were out of spec and they did all of them no charge, motor was a lot quieter with cold starts fuel economy went downhill after reflash but has returned to normal with use, did not notice any change in power.

Your out of warranty so you would have to see if they would still cover it? It is worth a shot.

[JOHNNO1]

Hi All,

I have a 2005 model D4D 4x4 hilux. Never done any serious off road, and never been used as a comercial vehicle. Has been driven to work (40km round trip) over its life, only ever been filled with BP with the odd tank of Mobil or Shell. Always got 700km to a tank carrying no weight. Now, at about 110,000km over approx 2months went down to around 580-600km per tank. Went into dealer & evedently No3 injector was the problem. Did some research & found that there is a problem with these injectors & attacked Toyota for a warrranty claim, never got anywhere.

Now heres the thing. 2months ago I tried the Caltex Vortex Diesel and the mileage slowoly went up to the point where I got 730km out of a tank!! I figured it was the Vortex!! Well you wont believe it all of a sudden back down to 580-600km per tank. Got back on the phone to the dealership and they say quality of Diesel.....I cant get my head around this. Has anyone expierienced anything like this. Perhaps its a sensor or something out of adjustment who knows.

I conveyed to Toyota that I have had 4 Hilux's and that at a 110000, or even 150000 shouldnt have to entertain the idea of doing maintenance thats gonna cost around $5000. One dealership told me that they dont push the Diesels anymore as they are way to fragile and the cost of injectors & pumps are huge. There was a Prado that had done about 140000k, family car, injector problems & fuel pump issues that was gonna cost around 7-$8000 to repair....ouch to the family budget.

May be we can all get to together & launch an assault on Toyota to better support customers who pay extra for a "TOYOTA TUFF" Hilux that supposedly are so much more reliable & tougher than the rest!!!!

[Hilux Max]

Thought Id jump on the bandwagon here.

Got the reflash done last week....also got an injector test done and fuel leak test done at the same time.

Reflash has definitely quietened down the cold start rattles a little. But the fact remains one of my injectors is out of spec. Been told this long term if left unattended can result in engine damage.

Tomorrow I am booked in to get another injector test done to fill out the claim paperwork that gets sent to Denso for a set of new you beaut DLC Injectors and fuel rails. The new Denso injectors are diamond tipped with something else to stop carbon buildup.

Will be interesting to see how the hilux goes after this. I started to see the fuel economy go down after fitting this current set of tyres, more so than I could attribute to the slightly wider width, and as winter set in the rattles got worse.

Will update with results in a week or so when all is said and done.

I feel for people that end up with engine damage because of this.

[Hellbound]

Let us know how you get on with toyota Mmaaxx...

[Homer]

I had my injectors replaced few months ago (under warranty) after some aggravation. The first dealer tested it twice overnight and insisted that everything is within specs - though the mechanic who did the testing mentioned that at least one of the injectors was testing at -2.9.
My original warranty had only couple of months left so I quickly arranged for extended warranty (costly but still cheaper than injectors job) and subsequently managed to convince another dealer that I have no intention of letting it go until the problem is resolved to my full satisfaction.
Accordingly all four injectors were replaced and not only the rattle is gone but my fuel economy has improved considerably. I have been unofficially informed (apparently the official line is that there was nothing wrong with the original injectors in general) that I now have diamond tipped injectors and I hope that should fix the problem for a while.
Cheers

[Nick#]

Hi,
Having this issue now on my 3.5 year old hilux i have had for 2 months. Toyota said 2 injectors are screwed(1 not working at all) and the other 2 are not far behind. The dealer doesnt want to pay the $4500 quoted to do the job(i can understand this as he probably only made a few grand out of it himself)
Has anyone had any luck wiht getting them fixed outside of warranty by toyota? or consumer affairs? Im willing to go to court over this as im not forking out the money to do it. If i have to i will take the dealer to motor car traders to get him to do it but its not fair on the dealer either.
Is there a place you can buy the injecotors from cheap(genuine only)
Cheers,
Nick

[Hellbound]

Mate thats crap, dealers get reimbursed by toyota for any warranty work they do, and altho yours is outside of the warranty peried there are members on here that have had success in getting the dealers to cover either the total cost for replacement, or atleast half the labour cost with the them also covering the total cost for the injectors, as its a well known problem to toyota. Maybe tryn take it to another dealer for a second opinion and push the issue with them that this is a known problem, if no luck then go to toyota directly which others have done and had success too...

[Goldminer]

Quick question, do the new model injectors fit the 05/06 model?

[janine]

Yes they do,had mine done ,no worries.

[mathew8235]

Hi guys,

Currently thinking about upgrading to a newer D4D hilux from the trusty 2.8D. I have been doing alot of reading on here about these injector problems and that there are now new dimond tiped versions (DLC) available as a replacement, so I assume that all new models will have this type.
Does anybody know what model / year hilux these new injectors were added by Toyota as standard?