Rough Idle and knocking

Forum for Engine, Exhaust, Drivetrain, ECU
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justinnizho
Posts: 2
Joined: Thu Apr 28, 2022 3:51 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by justinnizho »

hi,

I have a 1.5d 2014 Qashqai with 48 000 miles.


Here is my story ... I did service and MOT a couple weeks ago and the mot reported that both front wishbones are damaged and need to be replaced. The same garage replaced them. The next day I start the car in the morning and the idle is rough, the needle bounces between 700 and 900 rpm that goes away after 2 min.

Then when I get going theres a knocking sound at low rpm. At take off between 1000 - 2000 rpm theres a knocking sound( like a tractor). I use the car a few days and it feels fine, no loss of power. If anything it feels better than before the service.

I took the car back to the mechanic and he tells me its injectors and it will cost me £1500 to fix and he can offer me a payment plan.


How can it be injectors with no loss of power?

Anyone else have anything like this?

thank you

justinnizho
Posts: 2
Joined: Thu Apr 28, 2022 3:51 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by justinnizho »

bump
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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.

Unfortunately I can’t offer any advice or assistance.
Hopefully someone more technically minded will be along soon and hopefully can offer some advice or suggestions
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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