diesel rattle in D4D Prado

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

Re: diesel rattle in D4D Prado

I might stop this train of thought out loud before the TP calls the federal police..................


I think it comes under " I have no inner monologue" :mrgreen: :mrgreen:

[Guest Close Guest]

Re: diesel rattle in D4D Prado

I rang my dealer today and they said that Toyota are doing trails on some Prado D4D engines (no hiluxes unfortunatley for me) and they are waiting for 1 more report to come back before they make a decesion on if they do all the prado's. Sounds like a cop out to me.
I even told them the part numbers that borgy posted and they said they can't get them.
I suppose i will ring them back again soon to see if they have heard anything.

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

Re: diesel rattle in D4D Prado

hmmm... One more Prado, shouldn't take to long before another one comes out of the woodwork.

I rang my dealer today to let them know that mine is still not fixed. The noise is still there, albeit not as bad as it was. It has also developed a rough idle say when you pull up at the lights and come to a stop.

I asked them if they had received any info on the ECU reflash but they said there was no reflash, only one for the 200 series. It's hard to make heads or tails from the info you receive from the local dealer and what you read from other guys experience on PP. I guess I'll wait till the 20k service and hopefully by then there will be some more info out there on what's happening.

Mav... That sux mate. At least it's happened whilst still under warranty, but not very comforting at all that it's re-appeared after the initial fix. Keep us informed with how she goes.

Cheers,

Crammy

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

Re: diesel rattle in D4D Prado

Well I started the Prado up today and my heart sank. I have a rattle developing again, bugger! It is only just noticeable at the moment but going from past experience I can expect it to grow in loudness.

I always suspected it would come back. What's the point of changing one injector? Especially with the same type of injector that gave you the grief in the first place.

It is very strange that we're getting differing views from different dealers. I'm starting to think there's some sort of conspiracy going on. Why are some dealers happy to supply a new design injector and do the re-flash when others deny the re-flash exists?

[mav Addicted PP Member Find all posts View Profile Close mav]

Re: diesel rattle in D4D Prado

Well I started the Prado up today and my heart sank. I have a rattle developing again, bugger! It is only just noticeable at the moment but going from past experience I can expect it to grow in loudness.

I always suspected it would come back. What's the point of changing one injector? Especially with the same time of injector that gave you the grief in the first place.

It is very strange that we're getting differing views from different dealers. I'm starting to think there's some sort of conspiracy going on. Why are some dealers happy to supply a new design injector and do the re-flash when others deny the re-flash exists?

Well I supposedly got the reflash done, but I was always dubious of the remaining original injectors. Originally they were going to replace all 4 injectors but come the day and I was told that Toyota had decided to only allow the one injector to be replaced. I asked if this was because there was a shortage of injectors and they were trying to spread the available stock to cover the worst ones around the country and the answer was that was probably close to the mark.

Mine is still at the early stages so I will see what it is like when I get down to Newcastle at Xmas.

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

Re: diesel rattle in D4D Prado

I dropped mine in for service and complained again about the rough idle at lights, especially when cold. The person there said that there is a reflash due out pretty soon and he also said that replacing injectors was not fixing anything for very long. Hope he is right

cheers

TIm

[navy1430 Member Find all posts View Profile Close navy1430]

Re: diesel rattle in D4D Prado

Just had 4 x new design injectors -part 095000-778 denso and a Reflash and update of ECU software to suit new injectors
Will take it back after 1000K for retest of injector readingd

As good as new ...

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

Re: diesel rattle in D4D Prado

long time since last post. wow the website's changed.

Id be very interested to know why some do it and some dont. what's the difference between the vehicles that do and dont have the rattle (or what's in common with the vehicles that do rattle)?

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

Re: diesel rattle in D4D Prado

Hi MjForder,
That is a good question, Chippys stats have given us a bit of info about vehicle usage driving habits/fuelling habits/ fuel system maintenance intervals etc. but maybe we need to look harder at build dates to establish a trend.
I was thinking that maybe all interstate groups with D4D's need to get together, listen to each others vehicle and compare a toyota diagnosed noisy vehicle with one that an owner is happy with, I think there should be enough techos spread amongst each group to establish if a new owner thinks a vehicle is noisy then to advise that owner no it is a normal common rail diesel engine noise level or Yes that engine has a problem.
I know for northern groups doing a cold start test is a bit difficult, but a get together might highlight other anomalies with so called rattly engines.
Just a thought

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

Re: diesel rattle in D4D Prado

Clifton - interestingly enough - as mav points out - those that have had one or more injectors replaced and in some instances with a "new" design one - if the rattle comes back then it probably identifies it is a fundamental issue with the design of the injector (or controller/program) - and if so, then it is strange why all vehicles dont do it.

I know quite a few people with D4D's (Hilux and Prados) - and they are quite happy and havent to their knowledge had a rattle (other than normal diesel).

I have a mate who has an early 90's model Rodeo (Isuzu motor) - and alongside my car his sounds like a can of nuts and bolts on one of those paint shaker machines. After 270,000kms - he has had no issues and is probably deaf to the rattle! Then again, with 3 kids under the age of 6 - he probably has attuned his selective hearing skills by now!



M

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

Re: Diesel engine clatter

Well PradoPointers, I am able to add another scenario regarding what is causing the "clatter", mainly when cold.
When I dropped my vehicle off at the dealer this morning to have a SECOND set of engine mounts replaced under warranty, I spoke to the ser vice manager re the cold clatter and he advises it is caused by uneven action of injector cleaner!!! Apparently, different brands of diesel have different levels of a cleaner additive and depending on this, the injectors do not get cleaned evenly and level a mior carbon residue, hardly even distinguishable when removing and looking at the injecor at fault. I guess this could explain different injectors being responsible, as reported by previous posts? In any event, the service manager told me that it will go away after a while and not be a problem (after enough fuel has been forced through to remove the residue). This is indeed the case with my vehicle, I had a run of it and it has now gone. At least I hope this is the case, the dealer is happy to see and assess the vehicle should it happen again.
He also indicated from his experience, there is one brand of fuel common to the majority of cases he has encountered. Gary :roll:

Chippy's data log also bears out that a particular brand of diesel seems to have a higher % of rattlers. Not condoning this because as said earlier we should be able to roll into any servo anywhere and fuel up without concern.

Also each of us seems to get a different story from the service people we deal with. At my 20k service a couple of weeks ago I was told that the rattle (at least here in Brisbane) is much more common in Hiluxes and it is usually injector 3 or 4 that is the culprit. As far as I know the D4D in the Prado and Hilux is the same. Also it was mentioned that of the hundreds of D4Ds sold by the dealership since late 2006 they have so far replaced fewer than a dozen or so injectors but then I also got the blank look about an ECU reflash so who knows?

Does anyone have the original part number of the injectors and what does a web search reveal about the two different parts?

And by the way Mav I think BUGGER pretty much covers it!

[photoprado Avid PP Poster! Find all posts View Profile Close photoprado]

Re: diesel rattle in D4D Prado

I was talking to a mate the other day who has a diesel mitsi triton ute. He thought the engine was pretty noisy, but was happy to live with it, thinking that it was just how diesels are. It went in for a service and came back quiet, but started drinking 1-2L/100km more fuel. When he asked the dealer about it, he said they had loaded a different tune onto the engine in response to customer demand for quieter engines. My mate had the old program put back...

It's probably not likely to be a similar issue with the Prado, but worth watching for. Are the noisy D4D's displaying any fuel economy differences?

Michael

[mav Addicted PP Member Find all posts View Profile Close mav]

Re: diesel rattle in D4D Prado

I was talking to a mate the other day who has a diesel mitsi triton ute. He thought the engine was pretty noisy, but was happy to live with it, thinking that it was just how diesels are. It went in for a service and came back quiet, but started drinking 1-2L/100km more fuel. When he asked the dealer about it, he said they had loaded a different tune onto the engine in response to customer demand for quieter engines. My mate had the old program put back...

It's probably not likely to be a similar issue with the Prado, but worth watching for. Are the noisy D4D's displaying any fuel economy differences?

Michael

As the injector dies the fuel economy does go up markedly, when mine was new I was regularly getting 9.3 l/100k once the injector started to die my economy eventually peaked at around 13.8l/100k.

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

Re: diesel rattle in D4D Prado

I got 9.7l/100 for the first tank of fuel then the noise started and the fuel consumption has gone up to 12l/100.

The dealer refuses to acknowledge a problem with the noise or the fuel consupmtion and Toyota say the consumptions is within the Prado spec.

I might have to go to another dealer.

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

Re: diesel rattle in D4D Prado

There are plenty of dealers in Brisbane so go elsewhere. The one in Albion/Kedron knows about the problem so a trip there may be a good option.