Prado 120 Injectors

Submitted: Friday, May 23, 2014 at 12:58
ThreadID: 107913 Views:8102 Replies:9 FollowUps:6
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Hi

Just received the bad news that injectors need replacing, 140,000 km so fairly ordinary life!!

Anyway, local Toyota dealer is quoting $3300 for full replacement. Interested in what other have paid to get this done as it seems to be a common problem. If done with non-Toyota parts, what sort of warranty is provided by the alternative suppliers? If replaced, are these better than the OE?

Any ideas and hints welcome

thanks in anticipation
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Reply By: desray (WA - Friday, May 23, 2014 at 13:11

Friday, May 23, 2014 at 13:11
look on Pradopoint .com .. lots of alternatives
AnswerID: 533020

Reply By: Member - Peter G20 - Friday, May 23, 2014 at 14:32

Friday, May 23, 2014 at 14:32
Gee that's a bit rough!
One would expect a much better run from those injectors than that!
My 16 year old patrol has done 340,000 ks and they are still going strong!
Did they say why they needed replacing?
Was it because the engine hasn't been worked hard enough?
Cheers
Pete
AnswerID: 533027

Reply By: Member - Rowdy6032 (WA) - Friday, May 23, 2014 at 15:22

Friday, May 23, 2014 at 15:22
Hi

Cost me $3674 to have mine replaced at 129 000 kms by a Diesel Fuel Injection Service. Upgraded new Toyota parts used. Unfortunately, it appears to be a fault with 2007/2008 models.

There is a bit more to it than just replacing the injectors.

If the injectors are faulty carbon will get into the oil and get picked up by the oil screen near the sump. It is the screen getting blocked by the carbon that causes major engine failure. The screen will have to be removed and either replaced or cleaned. Your oil and filters will also have to be changed.

Pradopoint has 40+ pages detailing this issue.
AnswerID: 533032

Follow Up By: Member - Frank P (NSW) - Friday, May 23, 2014 at 16:00

Friday, May 23, 2014 at 16:00
There are two modes of major failure.

First is the injectors themselves in the early D4D engines. If they drift out of spec they can grossly overfuel, causing cracked pistons etc. Not all engines are affected, but in those that are the result is pretty much catastrophic. There are replacement injectors available that address the problem.

You can monitor this by asking for injector feedback values at every service. The limits for the feedback values are plus or minus 2.5.

Second is the metal sealing washer under the injector. This affects all 120 Series and some 150 Series. The injectors are in the rocker box. In some cases the original washers would leak and allow combustion gases to blow by into the rocker area. This would carbonise some oil, carbon granules would get washed down to the sump where they would be caught in the oil pump pick-up screen. If this remains undetected the screen will block completely and the engine will fail. There are replacement sealing washers that fix the problem.

If you're a DIY person you can monitor this by inspecting the pick-up screen through the sump drain at every oil change.

My injectors were replaced at 60,000 under warranty - dealer picked up the problem, bless him. But I worry about the washers underneath - that problem hadn't reared its head when the injectors were replaced, so they are probably the potentially leaky ones. Oil pick-up is clean though. 170,000km and researching :-)

Cheers
FrankP

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Reply By: Member - Frank P (NSW) - Friday, May 23, 2014 at 15:35

Friday, May 23, 2014 at 15:35
Outback,

As others have said, Pradopoint.com is a good reference. Look at the Diesel Rattle, Injector Pricing and Preventative maintenance topics.

Is it a D4D and if so, what year and month of manufacture is your Prado?

If before 09/2007 and you have the original injectors you've done well from all accounts. A later injector is available, specifically designed for low sulphur fuel which the earlier D4D injectors did not handle well.

$3300 for a dealer to replace them - I'd like to see an itemised quote. I know of a diesel mechanic in Brisbane who specialises in the Prado D4D engines (there are a couple of variants). As of mid last year he was charging about $2800, sourcing genuine parts from Amayama and replacing parts that many do not.

Cheers
FrankP

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AnswerID: 533034

Reply By: goldrayenergy - Friday, May 23, 2014 at 16:32

Friday, May 23, 2014 at 16:32
Hi Outback, there is a bloke in Brisbane who can supply these injectors to you direct. What you will need is a mechanic in your area with a scan tool to code the injectors as required. Speak to Jay at Brisbane Fuel Injection Services 0448500800.
Mark
AnswerID: 533041

Reply By: Member - Andrew L (WA) - Friday, May 23, 2014 at 16:36

Friday, May 23, 2014 at 16:36
Baileys Diesel sell blueprinted Prado D4D injectors that are significantly cheaper then those from Toyota. You should be able to purchase four Bailleys injectors have them fitted by a diesel specialist and the compensation codes entered into the ECU for around $2K. As other have said Pradopoint is your best resource, there you will find detailed information on the Baileys injectors.
AnswerID: 533042

Follow Up By: Member - Toyocrusa (NSW) - Saturday, May 24, 2014 at 21:24

Saturday, May 24, 2014 at 21:24
Baileys Diesel Service
Lots of good reading on the Baileys' site.
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FollowupID: 816425

Reply By: allein m - Friday, May 23, 2014 at 18:24

Friday, May 23, 2014 at 18:24
Ok if this is a common problem why is Toyota not doing more about this ie a fix that may reduce the incidence .

That is 80,000 miles not good enough
AnswerID: 533053

Follow Up By: desray (WA - Friday, May 23, 2014 at 20:23

Friday, May 23, 2014 at 20:23
Toyota have had a recall for them in the rest of the world ,we dont have the problem in Australia according to Toyota ?????
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FollowupID: 816363

Follow Up By: HKB Electronics - Friday, May 23, 2014 at 21:56

Friday, May 23, 2014 at 21:56
It would appear Toyota Australia are hoping the majority of failures will occur outside of the warranty period. If they fail before they will try to blame poor quality fuel, only choice then is to take them to small claims court which I believe a few have done, but as you don't hear anything after they go to court I assume (maybe wrongly) that Toyota agree to an out of court settlement with a non disclosure clause?

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Follow Up By: Member - Rowdy6032 (WA) - Friday, May 23, 2014 at 22:26

Friday, May 23, 2014 at 22:26
Any complaints regarding the Prado injectors should be forwarded to the following address. They are supposed to be looking into the matter and hopefully if they get enough complaints something will get done and Toyota will have to take action in Australia.


Investigations Officer

Policy, Legislation and Projects | Vehicle Safety Standards

Department of Infrastructure and Regional Development

GPO Box 594, Canberra ACT 2601

P: 02 6274 6274

E: vinvestigations@infrastructure.gov.au
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FollowupID: 816367

Follow Up By: outback epicurean - Saturday, May 24, 2014 at 17:16

Saturday, May 24, 2014 at 17:16
Thanks for this information, I will certainly do this
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FollowupID: 816399

Reply By: Alsub - Saturday, May 24, 2014 at 15:43

Saturday, May 24, 2014 at 15:43
Are any other Toyota models affected by this problem of poor injectors?

Are either of the V8 engines affected?


Thanks,
Al
AnswerID: 533093

Reply By: bigcol - Tuesday, May 27, 2014 at 09:03

Tuesday, May 27, 2014 at 09:03
It's an all too common problem and Toyota will give you the run around
AnswerID: 533225

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