NEW 2009 Euro Luxury Auto Pinging

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Originally Posted by thewizzrd

Hi all,
He mentioned that it does manipulate the specs of the engine and the transmission.

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Any more detailed info on the above? as in what are the changes?

Cheers.

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Originally Posted by bk212

Mate this thread is about the pinging problem. Good for you that you don't have it, but telling those that do to move on is not very helpful.

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I take your point, I guess what I was meaning was until we know what the fix is and what effects it has, I don't see anything constructive in continuing to bag Honda.

My service guy told me any changes can have unintended consequences and he believed the delay was probably due to dyno testing involving running an engine non stop for several months and then breaking it down and checking for damage.

FOHonda I have 7000 km on the clock.

Anyway lets just hope the fix works.

Just drove it home and the pinging is still present. Not as much as before but still annoyingly present.

Can totally understand where you're coming from FoHonda.

My ping is constant and is highly annoying, I was just thinking today I wish i got a Mazda 6. :(

Like it's been said before 'love the car, hate the ping'

I have read about 15 or so pages of this thread, and haven't come across something that I thought may be the issue, I am not a mechanical engineer or engineer of any sort, so don't shoot me down, but this is just a thought;

A conventional gasoline engine usually has say a alloy head and cast iron exhaust manifold that is sometimes connected flush to the heat without a gasket, sometimes with a gasket in between, no doubt these two have different properties in the way they are made up and in there molecule structure and have different heating/cooling characteristics....

I was informed that the head and the exhaust manifold are actually one piece on these motors now, despite being a carry over from the previous model.

The point I am trying to get to is, could it be possible that as it is ALL the same piece of alloy, could some of the heat that is meant to exit through the exhaust system be transferred back into the area of the head around the cylinder chamber and be causing the pre-ignition? I remember years ago coming across a crysler/mitsubishi motor that would develop a hot spot in the head and this would cause pre-ignition and even running on to an extend.

Again, I could be completely off track here, but these engines have that many sensors that if it had been a computer/software problem surely it would be able to rectify it....

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Originally Posted by H.T

....The point I am trying to get to is, could it be possible that as it is ALL the same piece of alloy, could some of the heat that is meant to exit through the exhaust system be transferred back into the area of the head around the cylinder chamber and be causing the pre-ignition? ....

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No shots intended in my reply but someone earlier reported that Honda Australia had stated in writing to them that the problem was a post-ignition event and not likely to cause damage; in which case it would be better described as "pinging" or "knocking" and not "pre-ignition" since, by definition, the latter would be a pre-ignition event and not a post-ignition event.

See here for an explanation of the difference: http://en.wikipedia.org/wiki/Engine_knocking.

It could be the integral manifold as you suggested: Remnant fuel exploding in the hot integral manifold could sound like pinging.

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Originally Posted by buddah51au

In my belief if this was the actual problem All K24Z3 engines would be effected, not just a few which is the case. I could use the same argument & suggest that if it was an actual pinging problem in theory it would be more pronounced on vehicles with a manual transmission as owners would tend to labour the engine more (not downshifting soon enough) which would place more load on the engine, subsequently increasing the chance of pinging. Pre Ignition has usually been associated with high load / low RPM.
I still believe it is a problem associated with the timing chain / tensioner, but again if this was the case one has to ask why Manual Transmission vehicles don't appear to be effected? Could it possibly be something within the Torque Converter or an Auto Trans problem?
All we can do is wait for Honda HQ to find the problem so that effected vehicles can be rectified.
I have no such problem in my CU2 Auto, & 2 others that I know of personally are not effected either. It will be interesting to find out what the problem is eventually.

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I think that not all Autos ping and not all manuals ping. But remember that the auto Euro outsells the manual 9 to 1. So there are less manuals on the road with the problem.

Any updates people, it is now MID March and the "Start of March" problem rectification is yet to be seen??

I have had my 10K service (and for an oil change farkin expensive and once this noise is rectified will not be going back to Honda Dealership so they can prop up their profits by ripping people off at service...) and nothing about this has come into the dealer and obviously nothing thus done to my car...

Just want to see what others are experiencing being mushrooms???

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Originally Posted by denot

^^^ A guy from this forum got the update. last message from him was that the ping is gone.

EDIT: here's the post (prev page)

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Latest post from 'thewizzard' was ...

"Just drove it home and the pinging is still present. Not as much as before but still annoyingly present."

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Originally Posted by FOHonda

Latest post from 'thewizzard' was ...

"Just drove it home and the pinging is still present. Not as much as before but still annoyingly present."

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ah my bad, I'll delete my post then :thumbsup:

I got an email from service manager at my dealer yesterday, stating:

"We have been advised by Honda Australia that the repair method has been developed. Currently Honda Motor Co Japan are running further field testing to ensure its suitability for Australian conditions. We will be in touch once that is finalised to book you in".

All he was saying is that he felt (not official Honda speak) that performance could suffer and if the ping is not a big issue for you wait and see how it pans out.

No need to bag a guy you have never met or spoken to. He didn't need to say anything and I appreciated his candor.

My ping is hardly noticeable and only occurs a few times a week, so I will wait and see what effect the fix has. In the mean time the dealer has noted I have the ping so I am covered warrant wise.[/QUOTE]


Pull your head in Sludge.

Im making a comment ok, if you wanna be a precious pussy
over it so be it then.
Cant a bloke have say or what.