Brake pedal hiss - Servo leak?
- gloucester
- Posts: 5189
- Joined: Sun Apr 03, 2016 7:04 am
- Location: Gloucestershire, England
- Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)
Ash68 - welcome to this forum.
I don't know the answer I'm afraid.
I don't know the answer I'm afraid.
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07 ~ (2024 Volvo EX30 ordered)
- calnorth
- Posts: 2719
- Joined: Mon Feb 11, 2019 2:01 pm
- Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)
Behind and above the brake pedal is where the brake Master Cylinder and Booster (Servo) system reside. Boost requires a vacuum developed by the engine. Noises like hiss or squelch likely arises around there. If vacuum is returning to atmospheric pressure you will have lost some or all brake power assistance. Power assisted braking that usefully reduces foot effort.
See if you can check your system by performing the Nissan diagnostic tests shown below. In any case get the brake system checked as vacuum hoses could be a problem as well.
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See if you can check your system by performing the Nissan diagnostic tests shown below. In any case get the brake system checked as vacuum hoses could be a problem as well.
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Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta
1.6 Dig-T N-Connecta