Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk2 2008-2015 => Topic started by: Magnus on March 29, 2022, 04:34:53 PM
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Dear all,
I've recently bought a used Honda Jazz 1.4 i-VTEC 2009 5-speed manual.
I am noticing a distinct noise from the engine-area during acceleration. The noise only occurs as the engine is "pulling" and thus not present while cruising. As I drive mostly in the city, the noise is very disturbing and is most noticeably when stepping on the gas in 3.4' gear.
I've taken it to several workshops, each with their own diagnostic. transmission bearing, timing-chain, heat shield and intake manifold.
To me, the timing-chain seems unlikely. I've inspected the heat shields and intake manifold and I certainly would not want to pay for bearing replacement, only to find the problem is somewhere else.
I've attached two short videos, hopefully will be able to hear it.
My hope is that someone might be able to guide me in the right direction. Thank you in advance!
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Can't hear the noise very well on video ( just a roaring noise - which could be induction noise ), but when a strange intermittent noise happens when flooring the accelerator in higher gears it could be pinking / knocking. Next time you fill up try some 99 RON fuel and see if it makes the noise better... also when were spark plugs changed - the iridium plugs in MK2 supposed to be good for 70,000 miles ( about 120,000 KM ) if I recall correctly, but they were changed in my wifes MK2 at about 60,000 miles ( 100,000 km ) and the engine felt better..
I fitted these and they have been in the engine for about 5 years now, they were identical in heat range, spark position etc to original Honda..
https://www.opieoils.co.uk/p-79514-ngk-izfr6k13-6774-iridium-ix-spark-plug-sparkplug-platinum-ground-electrode.aspx?VariantID=124730
Original Honda are these... https://www.opieoils.co.uk/p-79449-ngk-difr6d13-94167-laser-iridium-spark-plug-sparkplug-fits-honda-crz-hybrid.aspx?VariantID=124536
Which you can also get from Cox Motors https://www.coxmotorparts.co.uk/honda-shop/genuine-honda-jazz-spark-plug-set-iridium-2009-2015/
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I have the same noise. Ish.
So far I’ve changed the oil for top spec 5-30 fully synthetic oil and changed the filter too for a genuine Honda item. The car had been serviced before I bought it from a garage but I NEVER trust that it’s been done correctly - cars love the correct oil and it’s cheap to do it - I did it myself.
I’ve also been adding an octane booster to the fuel each time it’s filled up. I used this one https://www.halfords.com/motoring/engine-oils-and-fluids/fuel-and-oil-additives/millers-petrol-power-ecomax-500ml-166788.html as I think it’ll probably be cheaper than premium fuel and it’s easier to add this to my normal fuel than seek out decent Shell V-power or similar (I’d only use V power personally, not all high octane fuels are the same!).
I’m sure the noise has reduced somewhat with those changes but I have more planned.
I’ve just bought a full set of iridium spark plugs from sparkplugs.co.uk - cost was £48 for a set of Denso SKJ20DR-M13 plugs which are recommended by Honda (they recommend 2 types - see the screenshot I have attached from the Honda dealer service guide - but these are the cheaper ones).
I’ve also got a genuine Honda rocker cover gasket and sealant and I’m going to check the valve clearances - just got to borrow a torque wrench from a friend to to that. I’ll do that at the same time as the plugs.
I had a good look under the car but I couldn’t find any loose heatshields but when I do the plugs I’ll get better access behind the engine to check there.
Basically I’m doing what I do with any car - do a compete service and change everything that’s fairly cheap and could promote poor running or poor reliability. I don’t trust garages, not even dealers to do everything correctly. I can’t do everything mechanic wise on a car but this sort of stuff is pretty much bolt on - mostly using a Halfords advanced socket set!!
I’ll let you know how I’m getting on.
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some suggestions posted on 30 march dropped off due to a server problem. OP has already checked air filter and induction ducting.
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i get a noise when accelerating after years of complaining to honda about it , i noticed its even worse
when going up hill which leads me to believe it is my clutch , i have a manual 1.3 plus 2014
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Welcome. What did Honda have to say about it?
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At this point i have dismantled everything apart from the gearbox itself. No reason to believe that it should be an induction noise or anything like that.
I can’t really make sense of how etc. a gearbox bearing noise would appear periodically like that. I can hear a slight bit of noise from the transmission, when the clutch is depressed but it so little that I have to hold my ear close to it..
I’m planning on removing the gearbox to replace clutch at throw out bearing soon. Does anyone by chance know where I can find a set of bearings for the gearbox?
- Best
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Gearbox noise goes away when you depress the clutch.
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Ok now I changed the spark plugs yesterday for new iridium OEM spec ones and it has made no difference. Still the same noise.
I checked the back of the engine and couldn’t find anything loose - the gear linkage was maybe a little loose but I have no experience in these things - is it ok?
https://youtube.com/shorts/gMQ4wOT_aJA?feature=share
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Noises when accelerating in higher gears can be clutch thrash, caused by the coil springs in the clutch centre plate becoming slack. Used to be a common problem when I was working on fords many years ago. Gearbox bearings both on the mainshaft, and the needle bearings in the layshaft can also be worn as the lower gears put them under more stress. Might be worth changing gear oil and checking for debris in the drained oil.
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Noises when accelerating in higher gears can be clutch thrash, caused by the coil springs in the clutch centre plate becoming slack. Used to be a common problem when I was working on fords many years ago. Gearbox bearings both on the mainshaft, and the needle bearings in the layshaft can also be worn as the lower gears put them under more stress. Might be worth changing gear oil and checking for debris in the drained oil.
Don't know if this is related but I experience a rattle and always @2100 RPM underway, never stationary so very hard to diagnose on the drive etc. I asked Honda to check it and the mechanic reckoned it was a clutch problem.
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I have this same symptom.
For what i gathered my bet would be on a failed input shaft bearing inside the gearbox.
Nothing else makes much sense, and i doubt changing the clutch and the release bearing would change that.
I have changed my gearbox oil in the hopes it would get better, but it remained the same.
I wonder if it actually is something i should worry about or not, since it is not affecting the driving at the moment...
PS:. i thought it was a GD model issue only... apparently not.
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I have a similar sound, I think. Most noticeable at 2000RPM. 3rd gr and above. Only when pulling hard.
I came to the conclusion it was injector resonance. No harm. New injectors could help. Some brands mount injectors with a rubber piece to kill resonance going to in the engine block.
If gearbox I'd expect it to be worse at high rpm. Clutch would be worse when slipping or pulling away at low rpm.
I've had it for a year. No issues driving.
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That is an educated guess, thank you!
The fact that the noise doesn’t follow rpm has kept me from swapping the gearbox yet, as it keeps running without any noticeable change.
Please let me know if you come to a conclusion at some point.
Best
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That is an educated guess, thank you!
The fact that the noise doesn’t follow rpm has kept me from swapping the gearbox yet, as it keeps running without any noticeable change.
Please let me know if you come to a conclusion at some point.
Best
Though injectors would likely rattle at idle or neutral too.
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The injectors may excite a resonance in the engine block at specific timing instances. There are two factors that would play - timing of the injection and duration of the injection. Seems like longer duration injection is louder because the noise is stronger at high load.
I did consider it might be cam springs - high cam lift at specific RPM. But I already checked and set the gap tollerrance on mine and it made no noticeable difference.
Would be interesting to know if the motor made these noises when new. I bought mine used.
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Hi, I'm not sure if the noise I hear is similar but I have noticed my Honda Mk2 (2011) sounds something like that when I over-stress the engine at low revs. It was explained to me in the past that it's something to do with valves.
I usually drive on the higher side, using each gear a bit more as I like the sound and pull it has in 3-5k range :) that comes with fairly poor mpg of 46-52 depending on how much motorway travel is involved so I almost never get to hear it.
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Could you try what this mechanic says in this video ?