diesel rattle in D4D Prado

[Baileys Diesel Group Member Find all posts View Profile Close Baileys Diesel Group]

cheers guys happy to share.

Have a pretty major product launch coming up in the next few weeks, so as a part of the build up, we'll be letting loose with more information than we have before. I'll make sure i post it up in the Diesel section but!

[sfrancome Lurker Find all posts View Profile Close sfrancome]

I had the same problem and had it monitored from near new it finally got to me so i asked a toyota dealer, his answer was they are advising anyone with a 120 up to August 2007 to change seals on the injectors. I changed the seals which were still ok, however one injector was feeding to much fuel, I had it replaced (dealers injector price about $500.00 new) well worth it. Total cost including labour $950.00 This was the best money I ever spent on this car no rattles problem fixed.

[2Gees Lurker Find all posts View Profile Close 2Gees]

G'day Guys, I have a sep 07 120 grande auto with just on 145k and it has started with this rattle and also runs rough when cold at idle in gear. What are you guys using for injectors and where is the cheapest place to get them from? I'm a mechanic of 20 years fixing plant eq but have a mate with the Toyota software to sink the new inj in. What is the easiest normal thing people do to these cars. Cheer in advance.. Glen..

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

Your choices are Baileys (recon unit), Toyota OEM thru your dealer (expensive), Amayama.com (reasonably priced Denso) or RickNZ, half price compared to buying in Australia. Check the various threads and for sale thread.

[Rowdy6032 Lurker Find all posts View Profile Close Rowdy6032]

Hi

I am looking at buying a scope to check out the oil pickup-up screen through the sump.

I looked at one that was on special at Supercheap but the camera end appeared just a bit too big to go in the sump.

Can anyone please recommend a scope that will fit through the sump?

Sorry if I have missed it on the forum but my head is spinning with all this information.

Thanks in advance.

Regards
Rowdy

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

Autopro had one on sale the other week for $79. The camera was a Bullant model G6000 and is only about 10mm in diameter and also has a built in LED light. Works a treat.

[DJ120 Junior Member Find all posts View Profile Close DJ120]

Injector change out

Hi all, firstly I’d like to thank all those who contribute to this great forum sharing a wealth of knowledge and experiences. It helped me navigate through the minefield of decisions in the injector change out saga.

Just thought I would share my experience with having to change the injectors on my Prado.

My GX 2007 had done about 137,500 kms and had a very unhealthy rattle when driven cold just after start up. I bit the bullet and decided to shop around for an injector change out.

Taking the vehicle to my local Toyota dealer to be repaired was not an option for me as I know how expensive and overpriced they are for everything.

So made contact with a gentleman on the forum in NZ by the name of Ric, who quoted $1970 for a kit which included 4x injectors, 4x high pressure injector pipes and 5x leak off washers or could I could go just the new injectors for $1800. That is on your door in about three/four days. How good is that. What a great price. Thanks Ric.

I then contacted Bailey’s and they quoted $2200 for four remanufactured injectors + $33 freight with a $1100 refund upon return of my old injectors and confirmation they were fit for recondition.

I chose the re manufactured injectors from Bailey’s based on my budget constraints. The customer service Bailey’s staff provided to me was excellent. (Thks Helena)

I think it important to point out that these two kits are quite different in the sense that one consists of new components and can include fuel lines and washers (which Toyota recommend) and the other is reconditioned with washers and I didn't replace the fuel lines.

I reside in Perth and after shopping around for someone to fit them for me (due to a crook back) decided on a company in Midland called Major Auto Technics. They quoted $440 fitted and coded. The job ended up costing $515 as he had to purchase a rocker gasket and some other bits, as mine had not arrived. (Ordered from a source on the net.) Once again, I was very happy with the customer service and overall job.

In conclusion, I have changed injectors for about $1600 in total and I’m very happy with the outcome. The Prado is quieter when driven cold and idles smoother. I expect the fuel economy will be much better also. I must say though, I have noticed what seems to me, a slight drop in torque in all gears when accelerating. I can only conclude this is due to less fuel passing through the injectors, which should result in a better fuel economy, but I’m only guessing.

Regards
DJ120

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

Hi guys,

I just bought a used '07 Prado with the injectors already replaced, but unfortunately it has the cold rattle! I picked it up for a bargain, not so much a bargain if I have to get the injectors replaced though. Looking for advice on what to do next.

What I know about the Prado's history: The motor (short) was damaged and changed out 80K ago due to a faulty no.1 injector. Toyota also replaced No.1 injector. The guy I bought it from then had a diesel mechanic mate install 3 new 'diamond tipped' injectors in 2011. I don't have any detailed paperwork on the new injectors.

I now need to figure out what to do about it. My thoughts are:

Change the oil viscosity. Not sure whether to go 15w-40w or 10w-30w? Can anyone suggest a particular brand? If this fixes the rattle is my engine safe long term?

Get the ECU re-flashed I'm almost certain that this wasn't done. I will call the previous owner and ask if people here agree this should be done.

Change the injectors Failing the first two options I assume I would now have to look a getting the injectors tested. How do identify what injectors I have?

Need you guys to help me out here, what course of action should I take?

Cheers, Steve.

[pjorek Advanced Member Find all posts View Profile Close pjorek]

Hi guys,

I just bought a used '07 Prado with the injectors already replaced, but unfortunately it has the cold rattle! I picked it up for a bargain, not so much a bargain if I have to get the injectors replaced though. Looking for advice on what to do next.

What I know about the Prado's history: The motor (short) was damaged and changed out 80K ago due to a faulty no.1 injector. Toyota also replaced No.1 injector. The guy I bought it from then had a diesel mechanic mate install 3 new 'diamond tipped' injectors in 2011. I don't have any detailed paperwork on the new injectors.

I now need to figure out what to do about it. My thoughts are:

Change the oil viscosity. Not sure whether to go 15w-40w or 10w-30w? Can anyone suggest a particular brand? If this fixes the rattle is my engine safe long term?

Get the ECU re-flashed I'm almost certain that this wasn't done. I will call the previous owner and ask if people here agree this should be done.

Change the injectors Failing the first two options I assume I would now have to look a getting the injectors tested. How do identify what injectors I have?

Need you guys to help me out here, what course of action should I take?

Cheers, Steve.

Where are you located Steve? I suggest you enter location under your profile so local members can help out if needed.

If this was me I would read the injector feedback values. Two ways to do it, pay toyota around $100 for it but ask for some numbers or do it yourself, purchase a techstream cable + software off ebay for around $40.

If injector feedback values are within + or - 3.0 then they should be ok. Otherwise replace all 4.

Not a big fan of replacing 1 and then 3 with "diamond tip" (never heard of anything like that) injectors. You want to make sure that the other 3 are not ebay spec injectors but either Denso/Toyota injectors or injectors supplied by Baileys Diesel Group.

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

Thanks pjorek, I called BDG this morning and they also advised getting a scan gauge. I can then send them the data for a free assessment using their online form.

Sorry you have mistaken my words... Toyota replaced no.1 injector, the previous owner then got the remaining 3 changed out. So all four have been replaced.

Interesting read on BDGs site regarding the diamond tipped injectors that are now in my Prado, and how these may also be needing replacement:

http://www.baileysdiesel.com/on-high...rail-injector/

It seems the spindle binding up when cold causes the injectors to over fuel, hence the knock.

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

DLC - diamond-like coating. Its like a tenifer or phosphate like coating (similar to bluing). Designed to reduce wear associated with the high fuel pressures any high combustion temperatures. The injectors in the 150 and those fitted to 120 as replacements are known as DLC 316 injectors.

[Baileys Diesel Group Member Find all posts View Profile Close Baileys Diesel Group]

Bushbasher,
the 316 injectors only have the DLC coating on the nozzle needle and the actuating valve at the top. 95% of the failures we see here are actually the main spindle in the centre. Based on this logic, a 30140 or a 39316 injector are both equally as likely to fail in Australian conditions, hence our move to now also coat the spindle.
DLC itself is AWESOME stuff. I honestly believe it wont be long before a heap of other engine components internally are coated, cams and crank come to mind.

Anyway, hope this is of some help

[Rowdy6032 Lurker Find all posts View Profile Close Rowdy6032]

Bullant camera

Autopro had one on sale the other week for $79. The camera was a Bullant model G6000 and is only about 10mm in diameter and also has a built in LED light. Works a treat.

Thanks Bushbasher, have got the Bullant G6000.

Regards
Rowdy

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

Baileys Diesel Group,

Please correct me if I am wrong as I am trying to figure this out...

I believe that most of the injector trouble for the cold rattle is for 2006 and 2007 model 120 Prado's (just looking at 120 Prado's here for the sake of this query). Onwards from 2008, Toyota injectors were DLC coated on the tip and the actuating valve. From what I can gather this solved the problem, as I haven't heard of many post '08 Prado's having this issue.

Do you see many post 2008 model D4D Prado's needing injector replacement for 'cold knock', and if not, why would coating the spindle solve a problem already dealt with?

Cheers Steve

[awd2.0t Junior Member Find all posts View Profile Close awd2.0t]

Hi Steve,
See post #2246 - failure in main spindle....