Diverter Valve Problem

Forum for Engine, Exhaust, Drivetrain, ECU
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Newma74
Posts: 3
Joined: Mon Aug 02, 2021 5:28 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by Newma74 »

Took my 2018 1.2 Dig.t to mechanic after noting clunking sound from the engine when gas pedal released in neutral.
Diagnosed a faulty diverter valve ( sits on top of the turbo unit.)

Anyone know whether this could also be the culprit for persistent buzzing/vibrating noise inside the car ?Its seem to come from under the dash and worse as it gets colder on starting. Lasts about 20 mins then goes/ improves. Can’t be heard outside the vehicle.

Grateful for any suggestions.

startv
Posts: 20
Joined: Sun Feb 06, 2022 10:15 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by startv »

Hi Newma74

Hope your fix sorted the issues you stated

I am getting a slight hissing sound when pressing accelerater during driving and it releases back to neutral position.

It almost sounds like a vacuum hiss, unsure if it's linked to turbo.

Did mention to my local Nissan dealer who said no fault found but didn't confirm the noise is present or not.
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