J12 Quiet Whining

Forum for Engine, Exhaust, Drivetrain, ECU
Malcz86
Posts: 31
Joined: Mon Sep 07, 2020 2:00 pm
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by Malcz86 »

Been driving my J12 1.2 158 for around 3 weeks, done about 450 miles. It's great the only thing I've noticed and I may just be a bit sensitive but when you apply light pressure to the accelerator there's a whining noise, as soon as you take your foot off or apply heavier pressure it goes.

It's very quiet and could easily be dismissed, any thoughts?
Now: 1.3 NConnecta DIG-T 158 MHEV J12
Before: 1.2 Accenta Premium DIG-T J11

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MikeGC
Posts: 1852
Joined: Tue Feb 07, 2017 11:50 am
Location: Stockport
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by MikeGC »

Welcome to the forum

Haven’t heard this before and haven’t heard it in my car either
March '22 - J12 1.3DIG-T 160 CVT Tekna+ with all wheel drive - Pearl Black
July '19 - J11B 1.3DIG-T 160 DCT Tekna - Vivid Blue
March '17 - Qashqai J11A 1.5dci n-connecta - gunmetal
September '14 - Juke 1.5dci gunmetal ascenta premium (red accent packs)
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calnorth
Posts: 2719
Joined: Mon Feb 11, 2019 2:01 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by calnorth »

Does that occur in all 6 FWD gears?
Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta
Malcz86
Posts: 31
Joined: Mon Sep 07, 2020 2:00 pm
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by Malcz86 »

calnorth wrote: Mon May 16, 2022 11:42 am Does that occur in all 6 FWD gears?
Definitely in the higher gears, noticed it most when driving along at motorway speeds and just feathering the throttle to maintain speed. Will experiment with lower gears.
Now: 1.3 NConnecta DIG-T 158 MHEV J12
Before: 1.2 Accenta Premium DIG-T J11
Malcz86
Posts: 31
Joined: Mon Sep 07, 2020 2:00 pm
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by Malcz86 »

Did some town driving on the school run yesterday using the lower gears, didn't notice the sound, but then couldn't cruise for long in the lower gears.
Now: 1.3 NConnecta DIG-T 158 MHEV J12
Before: 1.2 Accenta Premium DIG-T J11
xavpiq
Posts: 162
Joined: Mon Nov 08, 2021 1:50 pm
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by xavpiq »

Is it the same problem the spanish owners are discussing here?

https://www.foroclub.es/nissan-qashqai/ ... =2&t=15656
Qashqai J12 N-Connecta, 140 hp manual.
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calnorth
Posts: 2719
Joined: Mon Feb 11, 2019 2:01 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by calnorth »

I can sometimes (audio off) hear the Gearbox/Diff gearing meshing at slow speed. Its either the front wheels or engine revs causing a difference in thrust on the gearing parts. Somewhat similar to a very elderly lorry...of days of old. Very low level.

I would of thought that any low level whine related to throttle change is gear meshing or bearings...through the drive train. I've experienced it much worse though in the past..on a gearbox input shaft bearing. Major wear on one side of the bearing race.
Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta
Malcz86
Posts: 31
Joined: Mon Sep 07, 2020 2:00 pm
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by Malcz86 »

xavpiq wrote: Tue May 17, 2022 10:35 am Is it the same problem the spanish owners are discussing here?

https://www.foroclub.es/nissan-qashqai/ ... =2&t=15656
Similar, but not sure if its the same they say the issue occurs when they go above 120KPH, for me it seems to be any speed in higher gears when I am feathing the accelerator to maintain speed. It's almost like an electrical sound you might get from a light bulb about to go or a faulty power back from something. Could it be related to the mild hybrid?
Now: 1.3 NConnecta DIG-T 158 MHEV J12
Before: 1.2 Accenta Premium DIG-T J11
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calnorth
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Joined: Mon Feb 11, 2019 2:01 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by calnorth »

Forgot this is a MH subject. That is an Inversion of DC to AC and probably about 300v AC. Perhaps that might be Inverter noise? Or electric motor?
Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta
Deleted User 14048

Post by Deleted User 14048 »

hi have same trouble with my 1.3 dig-t acenta premium this has been going on for months getting no ware has a mind of its own comes and goes as it likes very annoying.
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