Printable View
I think that as the noise continues and to be honest makes me feel unsafe in a vehicle that should not make such a noise. As such I think the product is unsafe...
Accordingly, the following may be a useful link...
http://www.accc.gov.au/content/index.phtml/itemId/54217
Additionally, this link may also be helpful...
http://www.fairtrading.qld.gov.au/of...1=Publications
so just confirming again as the thread is quite long now............
NO PINGING ON MANUAL Lux?
Not that i am aware..Quote:
Originally Posted by MKI4EVA
Anyone have any updates, I am about to email the dealer and Honda Australia again, I am at the end of my patience, it was thin before, but now with a rattling parcel shelf and passenger side speaker, it is time that enough is enough...
Quote:
Originally Posted by Bobjones
wow.......if I didn't know better I would have thought it was thai made.
Rattling parcel shelf and rattling speaker requires dynamat to deaden the vibrations. Don't think the dealer will do that for you under warranty. I have had them try to fix door rattles before and they just made it worse because each time they take the door panel off, the clips loosen up.Quote:
Originally Posted by Bobjones
Well mate, its very sad that we have to go thru all these..damn.Quote:
Originally Posted by Bobjones
What promised to be a good car, turn out even worsen than some cheaper brand. Very sad...Definately not what i expect from HONDA!!!!!!!!!
The fact that it 'rattles' at lower revs instead of mid-high revs and also it doesn't do it when going uphill at at load suggests it cannot be engine detonation.
Not sure if the CU2 owners know, but in the older Euro-Accords, there is funny metallic/watery noise coming from the air compressor of the air-con when the Temperature Control is set to anything other than the minimum or 19 degrees. It doesn't matter if the Air-con or Climate control is turned on or not, the noise is there when accelerating if that dial isn't on min or 19.
My car has that problem too and it sounds a bit like rattling metal except it doesn't have a power-cut feeling.
May be you guys should give this a try, turn down the climate control temp (even if its off) and isolate this problem first?
By the way, if the gearbox has a rattle noise, it should be much noisier when cold than when its warm. Like aarong said, if this is only happening in the Auto not the Manual, it might not be the engine. Although its hard to say if the Auto has a different mapping mode. Nowadays though, constant engine pinging is very highly unlikely. The ECU adjusts many variables from timings to fuel loads, if it pings enough it should even revert to a fail-safe mode to prevent damage. Somehow I just don't believe this is an engine issue at all.
My dealer called me yesterday to ask me whether the car still ping after different petrol. They also told me that Honda Australia and Honda Japan is looking after the issue now. They just asked me to wait for the solution from them. :(Quote:
Originally Posted by Bobjones
Ok so are they still saying its a fuel issue???
I will drop it back to Honda to have the other issues addressed when they come up with a solution. Maybe I should email them today...
Also Ometesando, yes I have tried what you have said and also there is no power cut feeling and it DOES make the sound quite often when going up hills, well it does in my case. As it stands, the sound is VERY much like pinging and being auto where the problem appears to be compared to manual, the incorrect gear selection results in load being placed on the engine as there is no "free spinning of the engine as both gearbox and engine are continually mated", thus it "could be" a combination of issues, ie the gear selection program is not properly matched to the ecu mapping. Also as for the fail safe mode, if the noise is within specs or the knock sensor is not located well enough to pick this up that will not happen, I am yet to see a factory sensor do an exception job of knock detection...
Also re the gearbox noise being louder when warm as compared to cold, I am yet to see a gearbox issue especially in an automatic get better with warmth, the warmer gearbox fluid is more viscous and thus lends itself to increasing the chances of noise especially with regards to something that is not picked up by the magical sensors that seemed to be so overly relied on these days...
I am sure if I had the time, the facilties including a dyno I could more than likely isolate the problem, but should I...I think not.
If you are not losing power, I really don't think it is caused by engine pinging. Because pinging comes from the mixture igniting too early, during the compression cycle. So you would feel a loss of power.Quote:
Originally Posted by Bobjones
The lose of power in relation to engine pinging is marginal unless you are talking peak power knock/pinging. The only way you will notice it is on a dyno, the seat of the pants especially in a N/A car will be virtually undetectable...
And to quote a smart man...
"Pinging" is the rattling sound an engine can make when accelerating. It usually occurs when the vehicle pulls away from a stop and the engine is under a lot of load or is "lugging" This is not a normal condition or desirable condition.
Here are some common reasons for an engine to ping.
An engine can ping because the combustion process is incorrect in some way. A "spark knock" is the result of combustion occurring too early. In a properly-firing cylinder, the flame front starts on one side of the piston and burns across the top to the other side, which creates a rapid and evenly-expanding gas that pushes down on the top of the piston. When the combustion process occurs too early, there is a random explosion in multiple locations on top of the piston; when this occurs, the flame front inside the cylinder collides with itself and does not burn evenly. An ignition timing that is too far advanced from the proper specification will create a spark knock because the combustion is initiated too early.
An engine can ping because it is too hot; this is another uneven combustion scenario that is caused by the air-to-fuel mixture "lighting off" by itself. If the cooling system does not keep the engine's combustion chamber temperature in check, the air-to-fuel mixture will begin to spontaneously explode. This is also called "pre-ignition."
In addition to cooling system problems, pinging can be caused by improper gasoline octane, an overly lean air-to-fuel mixture, or a lack of proper exhaust gas recirculation. The exhaust gas recirculation system (EGR) was created to neutralize engine pinging by adding a small amount of exhaust gas to the air-to-fuel mixture going in to the combustion process, which limits the peak combustion chamber temperature.