Engine buzzing sound

Faults and Technical chat for the Toyota C-HR
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insomnia
Posts: 109
Joined: Thu Mar 02, 2017 6:34 am
Location: Greece

Re: Engine buzzing sound

Post by insomnia » Fri Jun 15, 2018 9:19 pm

digitalsakurauk wrote:
Tue Jun 12, 2018 9:15 pm
update it was the vacuum regulating valve, a new one was fitted and so far so good.

Can you post a video after fix just for comparison?
Thanks.


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insomnia
Posts: 109
Joined: Thu Mar 02, 2017 6:34 am
Location: Greece

Re: Engine buzzing sound

Post by insomnia » Sat Mar 09, 2019 1:47 pm

digitalsakurauk wrote:
Fri May 18, 2018 8:18 pm
devonaygo wrote:
Fri May 18, 2018 7:25 pm
There is a Technical Service bulletin from Toyota that may apply:

EG-0030T-0317

Subject: Noise from the vacuum regulating valve

Models: AURIS; C-HR

Model codes: NRE185; NGX10; NGX50

DESCRIPTION OF PHENOMENON: Some customers may experience and report noise coming from the engine compartment.
The noise is coming from the Vacuum Regulating Valve. In some occasions the following DTC is stored in the ECU: DTC P024313 Turbocharger wastegate solenoid “A” circuit open

PRODUCTION CHANGE: The internal structure of the vacuum regulating valve is changed to prevent this phenomenon from occurring

PRODUCTION CHANGE INFORMATION: Auris NRE185 TMUK December 2016. C-HR NGX10 NGX50 TMMT January 2017

thanks, it does sound like a vacuum regulator. I made a youtube video of the probelm.


I got his sound today. After i switched off the engine for 5 min and started up again it was gone. I'll have to check it at dealer. omg :cry:


Gal98
Posts: 2
Joined: Fri Mar 22, 2019 12:03 am
Location: Ireland

Re: Engine buzzing sound

Post by Gal98 » Fri Mar 22, 2019 12:07 am

Had the same thing today in the workshop I’m working. Had done the skid control ecu reprogramming on it earlier all okay, customer complained about this buzzing noise . Customer tried to put the blame on us for the ecu update . A small bit of diagnosing and we managed to point it out. It’s not a big fix as Toyota only allow 0.4 of an hour but all still should be covered under warranty.


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